Peptides and its Impurities
Peptides are naturally occurring biological macromolecules formed by the linear arrangement of two or more amino acids linked together by peptide bonds. It can be used as biomarkers for disease detection and diagnosis. Reference standards of Peptides API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.


(3S,6S,9S,12S,15S,18S,24S,27S)-1-((S)-1-(N2-(Acetyl-L-glutamyl)-N4-(2-((5-sulfonaphthalen-1-yl)amino)ethyl)-L-asparaginyl-L-lysyl)pyrrolidin-2-yl)-9,12-dibenzyl-3-((S)-sec-butyl)-27-carbamoyl-24-(4-(4-((4-(dimethylamino)phenyl)diazenyl)benzamido)butyl)-15-(3-guanidinopropyl)-6,18-diisobutyl-1,4,7,10,13,16,19,22,25-nonaoxo-2,5,8,11,14,17,20,23,26-nonaazatriacontan-30-oic Acid
(3S,6S,9S,12S,15S,18S,24S,27S)-1-((S)-1-(N2-(Acetyl-L-glutamyl)-N4-(2-((5-sulfonaphthalen-1-yl)amino)ethyl)-L-asparaginyl-L-lysyl)pyrrolidin-2-yl)-9,12-dibenzyl-3-((S)-sec-butyl)-27-carbamoyl-24-(4-(4-((4-(dimethylamino)phenyl)diazenyl)benzamido)butyl)-15-(3-guanidinopropyl)-6,18-diisobutyl-1,4,7,10,13,16,19,22,25-nonaoxo-2,5,8,11,14,17,20,23,26-nonaazatriacontan-30-oic Acid
Catalogue No.:PA PEP 003727
CAS :
400716-78-1
Molecular Formula : C104H146N24O23S
Molecular Weight : 2132.52


(4S,7S,10S,16S,19S)-16-((1H-Indol-3-yl)methyl)-19-carbamoyl-10-(carboxymethyl)-23-((2,4-dinitrophenyl)amino)-7-isopropyl-4-((S)-2-(2-(7-methoxy-2-oxo-2H-chromen-4-yl)acetamido)-4-methylpentanamido)-5,8,11,14,17-pentaoxo-6,9,12,15,18-pentaazatricosanoic Acid
(4S,7S,10S,16S,19S)-16-((1H-Indol-3-yl)methyl)-19-carbamoyl-10-(carboxymethyl)-23-((2,4-dinitrophenyl)amino)-7-isopropyl-4-((S)-2-(2-(7-methoxy-2-oxo-2H-chromen-4-yl)acetamido)-4-methylpentanamido)-5,8,11,14,17-pentaoxo-6,9,12,15,18-pentaazatricosanoic Acid
Catalogue No.:PA PEP 003728
CAS :
400727-81-3
Molecular Formula : C57H70N12O19
Molecular Weight : 1227.25


(3S,6S,9S,12S)-3-(2-Chloroacetyl)-12-(4-hydroxybenzyl)-9-isopropyl-6-methyl-5,8,11,14-tetraoxo-18-((3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)-4,7,10,13-tetraazaoctadecanoic Acid
(3S,6S,9S,12S)-3-(2-Chloroacetyl)-12-(4-hydroxybenzyl)-9-isopropyl-6-methyl-5,8,11,14-tetraoxo-18-((3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)-4,7,10,13-tetraazaoctadecanoic Acid
Catalogue No.:PA PEP 003730
CAS :
402474-75-3
Molecular Formula : C32H45ClN6O9S
Molecular Weight : 725.26


L-Methionyl-L-aspartyl-L-tyrosyl-L-lysyl-L-aspartyl-L-histidyl-L-aspartylglycyl-L-aspartyl-L-tyrosyl-L-lysyl-L-aspartyl-L-histidyl-L-aspartyl-L-isoleucyl-L-aspartyl-L-tyrosyl-L-lysyl-L-aspartyl-L-aspartyl-L-aspartyl-L-aspartyl-L-lysine
L-Methionyl-L-aspartyl-L-tyrosyl-L-lysyl-L-aspartyl-L-histidyl-L-aspartylglycyl-L-aspartyl-L-tyrosyl-L-lysyl-L-aspartyl-L-histidyl-L-aspartyl-L-isoleucyl-L-aspartyl-L-tyrosyl-L-lysyl-L-aspartyl-L-aspartyl-L-aspartyl-L-aspartyl-L-lysine
Catalogue No.:PA PEP 003732
CAS :
402750-12-3
Molecular Formula : C120H169N31O49S
Molecular Weight : 2861.9


(4S,7S,10S,13S)-7-(2-Carboxyethyl)-13-formyl-4-isobutyl-10-isopropyl-2,5,8,11-tetraoxo-3,6,9,12-tetraazapentadecan-15-oic Acid
(4S,7S,10S,13S)-7-(2-Carboxyethyl)-13-formyl-4-isobutyl-10-isopropyl-2,5,8,11-tetraoxo-3,6,9,12-tetraazapentadecan-15-oic Acid
Catalogue No.:PA PEP 003733
CAS :
402832-01-3
Molecular Formula : C22H36N4O9
Molecular Weight : 500.55


L-Arginyl-L-cysteinylglycyl-L-prolyl-L-α-aspartyl-L-cysteinyl-L-phenylalanyl-L-α-aspartyl-L-asparaginyl-L-tyrosylglycyl-L-arginyl-L-tyrosyl-L-lysyl-L-tyrosyl-L-cysteinyl-L-phenylalanine
L-Arginyl-L-cysteinylglycyl-L-prolyl-L-α-aspartyl-L-cysteinyl-L-phenylalanyl-L-α-aspartyl-L-asparaginyl-L-tyrosylglycyl-L-arginyl-L-tyrosyl-L-lysyl-L-tyrosyl-L-cysteinyl-L-phenylalanine
Catalogue No.:PA PEP 003735
CAS :
402941-23-5
Molecular Formula : C93H127N25O26S3
Molecular Weight : 2107.37


(S)-4-((2S,3R)-2-((S)-1-(L-Seryl-L-arginyl)pyrrolidine-2-carboxamido)-3-hydroxybutanamido)-5-(((S)-6-amino-1-(((S)-4-amino-1-(((S)-1-(((S)-1-(((2S,3S)-1-(((S)-1-carboxy-2-methylpropyl)amino)-3-methyl-1-oxopentan-2-yl)amino)-1-oxo-3-phenylpropan-2-yl)amino)-3-methyl-1-oxobutan-2-yl)amino)-1,4-dioxobutan-2-yl)amino)-1-oxohexan-2-yl)amino)-5-oxopentanoic Acid
(S)-4-((2S,3R)-2-((S)-1-(L-Seryl-L-arginyl)pyrrolidine-2-carboxamido)-3-hydroxybutanamido)-5-(((S)-6-amino-1-(((S)-4-amino-1-(((S)-1-(((S)-1-(((2S,3S)-1-(((S)-1-carboxy-2-methylpropyl)amino)-3-methyl-1-oxopentan-2-yl)amino)-1-oxo-3-phenylpropan-2-yl)amino)-3-methyl-1-oxobutan-2-yl)amino)-1,4-dioxobutan-2-yl)amino)-1-oxohexan-2-yl)amino)-5-oxopentanoic Acid
Catalogue No.:PA PEP 003737
CAS :
403858-30-0
Molecular Formula : C58H96N16O17
Molecular Weight : 1289.5


(S)-5-(((4R,7S,10S,13S,16S,19R)-13-((1H-Indol-3-yl)methyl)-10-(4-aminobutyl)-16-benzyl-4-(((1S,2S)-1-carboxy-2-methylbutyl)carbamoyl)-7-(4-hydroxybenzyl)-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentaazacycloicosan-19-yl)amino)-5-oxo-4-((S)-1-(((S)-5-oxopyrrolidine-2-carbonyl)-L-histidylglycyl-L-alanyl-L-alanyl)pyrrolidine-2-carboxamido)pentanoic Acid
(S)-5-(((4R,7S,10S,13S,16S,19R)-13-((1H-Indol-3-yl)methyl)-10-(4-aminobutyl)-16-benzyl-4-(((1S,2S)-1-carboxy-2-methylbutyl)carbamoyl)-7-(4-hydroxybenzyl)-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentaazacycloicosan-19-yl)amino)-5-oxo-4-((S)-1-(((S)-5-oxopyrrolidine-2-carbonyl)-L-histidylglycyl-L-alanyl-L-alanyl)pyrrolidine-2-carboxamido)pentanoic Acid
Catalogue No.:PA PEP 003738
CAS :
405137-01-1
Molecular Formula : C76H100N18O19S2
Molecular Weight : 1633.86


L-Lysyl-L-leucyl-L-alanyl-L-leucyl-L-lysyl-L-leucyl-L-alanyl-L-leucyl-L-lysyl-L-alanyl-L-leucyl-L-lysyl-L-alanyl-L-alanyl-L-leucyl-L-lysyl-L-leucyl-L-alanine
L-Lysyl-L-leucyl-L-alanyl-L-leucyl-L-lysyl-L-leucyl-L-alanyl-L-leucyl-L-lysyl-L-alanyl-L-leucyl-L-lysyl-L-alanyl-L-alanyl-L-leucyl-L-lysyl-L-leucyl-L-alanine
Catalogue No.:PA PEP 003740
CAS :
406482-85-7
Molecular Formula : C90H169N23O19
Molecular Weight : 1877.48


(2S,5S,8S,11S,14S,17S)-2-((1H-Imidazol-5-yl)methyl)-17-amino-5-((S)-sec-butyl)-1-((S)-2-((carboxymethyl)carbamoyl)pyrrolidin-1-yl)-14-(3-guanidinopropyl)-8-(4-hydroxybenzyl)-11-isopropyl-1,4,7,10,13,16-hexaoxo-3,6,9,12,15-pentaazanonadecan-19-oic Acid
(2S,5S,8S,11S,14S,17S)-2-((1H-Imidazol-5-yl)methyl)-17-amino-5-((S)-sec-butyl)-1-((S)-2-((carboxymethyl)carbamoyl)pyrrolidin-1-yl)-14-(3-guanidinopropyl)-8-(4-hydroxybenzyl)-11-isopropyl-1,4,7,10,13,16-hexaoxo-3,6,9,12,15-pentaazanonadecan-19-oic Acid
Catalogue No.:PA PEP 003741
CAS :
40678-47-5
Molecular Formula : C43H65N13O12
Molecular Weight : 956.07


(S)-2-((6S,9S,12S,15S,18S)-18-((1H-Indol-3-yl)methyl)-6-acetamido-1-amino-15-(3-guanidinopropyl)-9,12-bis(4-hydroxybenzyl)-1-imino-7,10,13,16-tetraoxo-2,8,11,14,17-pentaazanonadecan-19-amido)-6-aminohexanamide 2,2,2-Trifluoroacetate
(S)-2-((6S,9S,12S,15S,18S)-18-((1H-Indol-3-yl)methyl)-6-acetamido-1-amino-15-(3-guanidinopropyl)-9,12-bis(4-hydroxybenzyl)-1-imino-7,10,13,16-tetraoxo-2,8,11,14,17-pentaazanonadecan-19-amido)-6-aminohexanamide 2,2,2-Trifluoroacetate
Catalogue No.:PA PEP 003743
CAS :
408305-09-9
Molecular Formula : C51H70F3N15O11
Molecular Weight : 1126.21


N-N-L-Seryl-L-asparaginyl-L-asparaginyl-L-phenylalanyl-N-methylglycyl-L-alanyl-N-methyl-L-isoleucyl-L-leucine
N-N-L-Seryl-L-asparaginyl-L-asparaginyl-L-phenylalanyl-N-methylglycyl-L-alanyl-N-methyl-L-isoleucyl-L-leucine
Catalogue No.:PA PEP 003746
CAS :
409085-44-5
Molecular Formula : C39H62N10O12
Molecular Weight : 862.98


N-N-L-Seryl-L-asparaginyl-L-asparaginyl-L-phenylalanyl-N-methylglycyl-L-alanyl-N-methyl-L-isoleucyl-L-leucyl-L-seryl-L-serine
N-N-L-Seryl-L-asparaginyl-L-asparaginyl-L-phenylalanyl-N-methylglycyl-L-alanyl-N-methyl-L-isoleucyl-L-leucyl-L-seryl-L-serine
Catalogue No.:PA PEP 003747
CAS :
409085-46-7
Molecular Formula : C45H72N12O16
Molecular Weight : 1037.14


L-Alanyl-L-glutaminyl-L-tyrosyl-L-isoleucyl-L-lysyl-L-alanyl-L-asparaginyl-L-seryl-L-lysyl-L-phenylalanyl-L-isoleucylglycyl-L-isoleucyl-L-threonyl-L-α-glutamyl-L-leucine
L-Alanyl-L-glutaminyl-L-tyrosyl-L-isoleucyl-L-lysyl-L-alanyl-L-asparaginyl-L-seryl-L-lysyl-L-phenylalanyl-L-isoleucylglycyl-L-isoleucyl-L-threonyl-L-α-glutamyl-L-leucine
Catalogue No.:PA PEP 003749
CAS :
410527-75-2
Molecular Formula : C83H134N20O24
Molecular Weight : 1796.1


(6S,9S,12S,15S,18S,21S)-21-Acetamido-1-amino-9-(3-amino-3-oxopropyl)-12,15-bis(4-aminobutyl)-1-imino-18-isopropyl-6-((4-nitrophenyl)carbamoyl)-8,11,14,17,20-pentaoxo-2,7,10,13,16,19-hexaazatetracosan-24-oic Acid
(6S,9S,12S,15S,18S,21S)-21-Acetamido-1-amino-9-(3-amino-3-oxopropyl)-12,15-bis(4-aminobutyl)-1-imino-18-isopropyl-6-((4-nitrophenyl)carbamoyl)-8,11,14,17,20-pentaoxo-2,7,10,13,16,19-hexaazatetracosan-24-oic Acid
Catalogue No.:PA PEP 003750
CAS :
410532-54-6
Molecular Formula : C41H68N14O12
Molecular Weight : 949.08


L-Alanyl-L-valyl-L-prolyl-L-isoleucyl-L-alanyl-L-glutaminyl-L-lysyl-L-seryl-L-glutamic Acid
L-Alanyl-L-valyl-L-prolyl-L-isoleucyl-L-alanyl-L-glutaminyl-L-lysyl-L-seryl-L-glutamic Acid
Catalogue No.:PA PEP 003751
CAS :
411230-24-5
Molecular Formula : C41H71N11O14
Molecular Weight : 942.08


L-Valylglycyl-L-arginyl-L-prolyl-L-α-glutamyl-L-tryptophyl-L-tryptophyl-L-methionyl-L-α-aspartyl-L-tyrosyl-L-glutaminyl-L-lysyl-L-arginyl-L-tyrosylglycine
L-Valylglycyl-L-arginyl-L-prolyl-L-α-glutamyl-L-tryptophyl-L-tryptophyl-L-methionyl-L-α-aspartyl-L-tyrosyl-L-glutaminyl-L-lysyl-L-arginyl-L-tyrosylglycine
Catalogue No.:PA PEP 003754
CAS :
412961-36-5
Molecular Formula : C91H127N25O23S
Molecular Weight : 1971.23


L-Leucyl-L-alanyl-L-alanyl-L-valyl-L-seryl-L-aspartyl-L-leucyl-L-asparaginyl-L-prolyl-L-asparaginyl-L-alanyl-L-prolyl-L-arginine
L-Leucyl-L-alanyl-L-alanyl-L-valyl-L-seryl-L-aspartyl-L-leucyl-L-asparaginyl-L-prolyl-L-asparaginyl-L-alanyl-L-prolyl-L-arginine
Catalogue No.:PA PEP 003756
CAS :
415684-36-5
Molecular Formula : C57H96N18O19
Molecular Weight : 1337.5


L-Tyrosyl-L-leucyl-L-alanyl-L-aspartylglycyl-L-aspartyl-L-leucyl-L-histidyl-L-seryl-L-aspartylglycyl-L-prolylglycyl-L-arginine
L-Tyrosyl-L-leucyl-L-alanyl-L-aspartylglycyl-L-aspartyl-L-leucyl-L-histidyl-L-seryl-L-aspartylglycyl-L-prolylglycyl-L-arginine
Catalogue No.:PA PEP 003757
CAS :
415684-38-7
Molecular Formula : C62H93N19O23
Molecular Weight : 1472.54


L-Alanyl-L-asparaginyl-L-methionyl-L-α-glutamyl-L-alanylglycyl-L-threonyl-L-methionyl-L-seryl-L-histidyl-L-phenylalanyl-L-prolyl-L-seryl-L-leucyl-L-prolyl-L-glutaminyl-L-arginyl-L-phenylalaninamide
L-Alanyl-L-asparaginyl-L-methionyl-L-α-glutamyl-L-alanylglycyl-L-threonyl-L-methionyl-L-seryl-L-histidyl-L-phenylalanyl-L-prolyl-L-seryl-L-leucyl-L-prolyl-L-glutaminyl-L-arginyl-L-phenylalaninamide
Catalogue No.:PA PEP 003761
CAS :
420088-80-8
Molecular Formula : C88H134N26O25S2
Molecular Weight : 2020.32


(S)-6-Amino-N-((4S,7S,10R,13S,16S,19S,22R,25R,28S,31R)-35-amino-10,19,22-tris(4-aminobutyl)-4-carbamoyl-7,13,16,25,28-pentaisobutyl-2-methyl-6,9,12,15,18,21,24,27,30-nonaoxo-5,8,11,14,17,20,23,26,29-nonaazapentatriacontan-31-yl)-2-((S)-2-((R)-2-((S)-6-amino-2-((S)-2-amino-4-methylpentanamido)hexanamido)-4-methylpentanamido)-4-methylpentanamido)hexanamide
(S)-6-Amino-N-((4S,7S,10R,13S,16S,19S,22R,25R,28S,31R)-35-amino-10,19,22-tris(4-aminobutyl)-4-carbamoyl-7,13,16,25,28-pentaisobutyl-2-methyl-6,9,12,15,18,21,24,27,30-nonaoxo-5,8,11,14,17,20,23,26,29-nonaazapentatriacontan-31-yl)-2-((S)-2-((R)-2-((S)-6-amino-2-((S)-2-amino-4-methylpentanamido)hexanamido)-4-methylpentanamido)-4-methylpentanamido)hexanamide
Catalogue No.:PA PEP 003764
CAS :
426264-61-1
Molecular Formula : C90H174N22O15
Molecular Weight : 1804.52


(S)-3-((S)-2-((S)-1-(((4R,10S,13S,16R,19S,22S)-19-((1H-Imidazol-5-yl)methyl)-10-((1H-indol-3-yl)methyl)-22-(2-carboxyethyl)-13-(3-guanidinopropyl)-16-(naphthalen-2-ylmethyl)-6,9,12,15,18,21,24-heptaoxo-1,2-dithia-5,8,11,14,17,20,23-heptaazacyclohexacosane-4-carbonyl)-L-prolyl)pyrrolidine-2-carboxamido)-6-aminohexanamido)-4-amino-4-oxobutanoic Acid
(S)-3-((S)-2-((S)-1-(((4R,10S,13S,16R,19S,22S)-19-((1H-Imidazol-5-yl)methyl)-10-((1H-indol-3-yl)methyl)-22-(2-carboxyethyl)-13-(3-guanidinopropyl)-16-(naphthalen-2-ylmethyl)-6,9,12,15,18,21,24-heptaoxo-1,2-dithia-5,8,11,14,17,20,23-heptaazacyclohexacosane-4-carbonyl)-L-prolyl)pyrrolidine-2-carboxamido)-6-aminohexanamido)-4-amino-4-oxobutanoic Acid
Catalogue No.:PA PEP 003771
CAS :
436083-30-6
Molecular Formula : C69H91N19O16S2
Molecular Weight : 1506.72


(S)-2-((S)-2-((2S,3R)-2-((2S,3R)-2-((S)-1-(L-Arginyl-L-prolyl-L-lysyl-L-arginyl)pyrrolidine-2-carboxamido)-3-hydroxybutanamido)-3-hydroxybutanamido)-4-methylpentanamido)-N1-((S)-1-(((S)-1-amino-1-oxo-3-phenylpropan-2-yl)amino)-4-methyl-1-oxopentan-2-yl)succinamide
(S)-2-((S)-2-((2S,3R)-2-((2S,3R)-2-((S)-1-(L-Arginyl-L-prolyl-L-lysyl-L-arginyl)pyrrolidine-2-carboxamido)-3-hydroxybutanamido)-3-hydroxybutanamido)-4-methylpentanamido)-N1-((S)-1-(((S)-1-amino-1-oxo-3-phenylpropan-2-yl)amino)-4-methyl-1-oxopentan-2-yl)succinamide
Catalogue No.:PA PEP 003772
CAS :
438567-88-5
Molecular Formula : C61H104N20O14
Molecular Weight : 1341.63


L-Alanyl-L-alanyl-L-valyl-L-alanyl-L-leucyl-L-leucyl-L-prolyl-L-alanyl-L-valyl-L-leucyl-L-leucyl-L-alanyl-L-leucyl-L-leucyl-L-alanyl-L-lysyl-L-asparaginyl-L-asparaginyl-L-leucyl-L-lysyl-L-α-glutamyl-L-cysteinylglycyl-L-leucyl-L-tyrosine
L-Alanyl-L-alanyl-L-valyl-L-alanyl-L-leucyl-L-leucyl-L-prolyl-L-alanyl-L-valyl-L-leucyl-L-leucyl-L-alanyl-L-leucyl-L-leucyl-L-alanyl-L-lysyl-L-asparaginyl-L-asparaginyl-L-leucyl-L-lysyl-L-α-glutamyl-L-cysteinylglycyl-L-leucyl-L-tyrosine
Catalogue No.:PA PEP 003774
CAS :
439223-21-9
Molecular Formula : C120H205N29O31S
Molecular Weight : 2582.19


(R)-2-((3S,9S,12R,15S,18R,21S,24R,27S)-27-((1H-Indol-3-yl)methyl)-12-isobutyl-3,18,21,24-tetraisopropyl-9,15-dimethyl-1,4,7,10,13,16,19,22,25-nonaoxo-2,5,8,11,14,17,20,23,26-nonaazaoctacosan-28-amido)-N-((5S,8R,11S,14R,17S)-5,11-bis((1H-indol-3-yl)methyl)-1-hydroxy-8,14-diisobutyl-4,7,10,13,16-pentaoxo-18-phenyl-3,6,9,12,15-pentaazaoctadecan-17-yl)-4-methylpentanamide
(R)-2-((3S,9S,12R,15S,18R,21S,24R,27S)-27-((1H-Indol-3-yl)methyl)-12-isobutyl-3,18,21,24-tetraisopropyl-9,15-dimethyl-1,4,7,10,13,16,19,22,25-nonaoxo-2,5,8,11,14,17,20,23,26-nonaazaoctacosan-28-amido)-N-((5S,8R,11S,14R,17S)-5,11-bis((1H-indol-3-yl)methyl)-1-hydroxy-8,14-diisobutyl-4,7,10,13,16-pentaoxo-18-phenyl-3,6,9,12,15-pentaazaoctadecan-17-yl)-4-methylpentanamide
Catalogue No.:PA PEP 003775
CAS :
4422-52-0
Molecular Formula : C97H139N19O17
Molecular Weight : 1843.3


(S)-N-Ethyl-1-(((S)-2-((2S,3R)-3-hydroxy-2-((2R,3S)-3-methyl-2-((S)-3-methyl-2-(2-(2-(N-methylacetamido)acetamido)acetamido)butanamido)pentanamido)butanamido)pentanoyl)-L-isoleucyl-L-arginyl)pyrrolidine-2-carboxamide, Acetate Salt
(S)-N-Ethyl-1-(((S)-2-((2S,3R)-3-hydroxy-2-((2R,3S)-3-methyl-2-((S)-3-methyl-2-(2-(2-(N-methylacetamido)acetamido)acetamido)butanamido)pentanamido)butanamido)pentanoyl)-L-isoleucyl-L-arginyl)pyrrolidine-2-carboxamide, Acetate Salt
Catalogue No.:PA PEP 003776
CAS :
442526-87-6
Molecular Formula : C48H87N13O13
Molecular Weight : 1054.3


L-α-Glutamyl-L-lysyl-L-prolyl-L-lysyl-L-valyl-L-α-glutamyl-L-alanyl-L-tyrosyl-L-lysyl-L-alanyl-L-alanyl-L-alanyl-L-alanyl-L-prolyl-L-alanine
L-α-Glutamyl-L-lysyl-L-prolyl-L-lysyl-L-valyl-L-α-glutamyl-L-alanyl-L-tyrosyl-L-lysyl-L-alanyl-L-alanyl-L-alanyl-L-alanyl-L-prolyl-L-alanine
Catalogue No.:PA PEP 003777
CAS :
444305-16-2
Molecular Formula : C70H114N18O21
Molecular Weight : 1543.79


(S)-2-Amino-N-((S)-1-(((S)-1-(((S)-1-(((2S,3R)-1-amino-3-hydroxy-1-oxobutan-2-yl)amino)-1-oxo-3-phenylpropan-2-yl)amino)-4-methyl-1-oxopentan-2-yl)amino)-4-methyl-1-oxopentan-2-yl)-5-guanidinopentanamide
(S)-2-Amino-N-((S)-1-(((S)-1-(((S)-1-(((2S,3R)-1-amino-3-hydroxy-1-oxobutan-2-yl)amino)-1-oxo-3-phenylpropan-2-yl)amino)-4-methyl-1-oxopentan-2-yl)amino)-4-methyl-1-oxopentan-2-yl)-5-guanidinopentanamide
Catalogue No.:PA PEP 003778
CAS :
447408-68-6
Molecular Formula : C31H53N9O6
Molecular Weight : 647.82


Benzyl ((6S,9S,17S)-6-benzyl-9-isobutyl-2,2,19-trimethyl-4,7,10,13,16-pentaoxo-3-oxa-5,8,11,12,14,15-hexaazaicosan-17-yl)carbamate
Benzyl ((6S,9S,17S)-6-benzyl-9-isobutyl-2,2,19-trimethyl-4,7,10,13,16-pentaoxo-3-oxa-5,8,11,12,14,15-hexaazaicosan-17-yl)carbamate
Catalogue No.:PA PEP 003780
CAS :
448945-62-8
Molecular Formula : C35H51N7O8
Molecular Weight : 697.83


N-Acetyl-D-α-aspartyl-D-tryptophyl-D-phenylalanyl-D-lysyl-D-alanyl-D-phenylalanyl-D-tyrosyl-D-α-aspartyl-D-lysyl-D-valyl-D-alanyl-D-α-glutamyl-D-lysyl-D-phenylalanyl-D-lysyl-D-α-glutamyl-D-alanyl-D-phenylalaninamide
N-Acetyl-D-α-aspartyl-D-tryptophyl-D-phenylalanyl-D-lysyl-D-alanyl-D-phenylalanyl-D-tyrosyl-D-α-aspartyl-D-lysyl-D-valyl-D-alanyl-D-α-glutamyl-D-lysyl-D-phenylalanyl-D-lysyl-D-α-glutamyl-D-alanyl-D-phenylalaninamide
Catalogue No.:PA PEP 003785
CAS :
452782-06-8
Molecular Formula : C114H156N24O28
Molecular Weight : 2310.64


(4R,10S,13S,16S,19S,22S,28R)-28-Amino-22-(2-amino-2-oxoethyl)-19-(4-aminobutyl)-10,16-bis(3-guanidinopropyl)-13-((R)-1-hydroxyethyl)-6,9,12,15,18,21,24,27-octaoxo-1,2-dithia-5,8,11,14,17,20,23,26-octaazacyclononacosane-4-carboxylic Acid
(4R,10S,13S,16S,19S,22S,28R)-28-Amino-22-(2-amino-2-oxoethyl)-19-(4-aminobutyl)-10,16-bis(3-guanidinopropyl)-13-((R)-1-hydroxyethyl)-6,9,12,15,18,21,24,27-octaoxo-1,2-dithia-5,8,11,14,17,20,23,26-octaazacyclononacosane-4-carboxylic Acid
Catalogue No.:PA PEP 003786
CAS :
454487-07-1
Molecular Formula : C36H65N17O12S2
Molecular Weight : 992.14


(2S,5S,8S,11S,14S,17S,20S,23S,26S,29S,32S,35S,38S)-5,17-Bis((1H-indol-3-yl)methyl)-38-amino-2-(2-amino-2-oxoethyl)-20-(4-aminobutyl)-29-(2-carboxyethyl)-23-(carboxymethyl)-11-(hydroxymethyl)-8,26,32,35-tetraisobutyl-14-methyl-4,7,10,13,16,19,22,25,28,31,34,37-dodecaoxo-3,6,9,12,15,18,21,24,27,30,33,36-dodecaazahentetracontanedioic Acid
(2S,5S,8S,11S,14S,17S,20S,23S,26S,29S,32S,35S,38S)-5,17-Bis((1H-indol-3-yl)methyl)-38-amino-2-(2-amino-2-oxoethyl)-20-(4-aminobutyl)-29-(2-carboxyethyl)-23-(carboxymethyl)-11-(hydroxymethyl)-8,26,32,35-tetraisobutyl-14-methyl-4,7,10,13,16,19,22,25,28,31,34,37-dodecaoxo-3,6,9,12,15,18,21,24,27,30,33,36-dodecaazahentetracontanedioic Acid
Catalogue No.:PA PEP 003794
CAS :
470704-11-1
Molecular Formula : C76H113N17O22
Molecular Weight : 1616.84


Glycyl-L-leucyl-L-asparaginylglycyl-L-prolyl-L-aspartyl-L-isoleucyl-L-tyrosyl-L-lysylglycyl-L-valyl-L-tyrosyl-L-glutaminyl-L-phenylalanyl-L-lysyl-L-seryl-L-valyl-L-glutamyl-L-phenylalanyl-L-aspartic Acid
Glycyl-L-leucyl-L-asparaginylglycyl-L-prolyl-L-aspartyl-L-isoleucyl-L-tyrosyl-L-lysylglycyl-L-valyl-L-tyrosyl-L-glutaminyl-L-phenylalanyl-L-lysyl-L-seryl-L-valyl-L-glutamyl-L-phenylalanyl-L-aspartic Acid
Catalogue No.:PA PEP 003796
CAS :
474105-11-8
Molecular Formula : C106H154N24O32
Molecular Weight : 2276.53


L-Arginyl-L-glutaminyl-L-isoleucyl-L-arginyl-L-isoleucyl-L-tryptophyl-L-phenylalanyl-L-glutaminyl-L-asparaginyl-L-arginyl-L-arginyl-L-methionyl-L-arginyl-L-tryptophyl-L-arginyl-L-arginine
L-Arginyl-L-glutaminyl-L-isoleucyl-L-arginyl-L-isoleucyl-L-tryptophyl-L-phenylalanyl-L-glutaminyl-L-asparaginyl-L-arginyl-L-arginyl-L-methionyl-L-arginyl-L-tryptophyl-L-arginyl-L-arginine
Catalogue No.:PA PEP 003797
CAS :
474634-55-4
Molecular Formula : C104H168N42O20S
Molecular Weight : 2358.82


L-Lysyl-L-lysyl-L-lysyl-L-alanyl-L-leucyl-L-asparaginyl-L-arginyl-L-glutaminyl-L-leucylglycyl-L-valyl-L-alanyl-L-alanine
L-Lysyl-L-lysyl-L-lysyl-L-alanyl-L-leucyl-L-asparaginyl-L-arginyl-L-glutaminyl-L-leucylglycyl-L-valyl-L-alanyl-L-alanine
Catalogue No.:PA PEP 003798
CAS :
474713-20-7
Molecular Formula : C61H113N21O16
Molecular Weight : 1396.71


(S)-2-((R)-2-Acetamido-3-(naphthalen-2-yl)propanamido)-N-((S)-1-amino-3-(naphthalen-2-yl)-1-oxopropan-2-yl)-5-guanidinopentanamide
(S)-2-((R)-2-Acetamido-3-(naphthalen-2-yl)propanamido)-N-((S)-1-amino-3-(naphthalen-2-yl)-1-oxopropan-2-yl)-5-guanidinopentanamide
Catalogue No.:PA PEP 003802
CAS :
475498-26-1
Molecular Formula : C34H39N7O4
Molecular Weight : 609.73


L-Lysyl-L-lysyl-L-alanyl-L-leucyl-L-leucyl-L-alanyl-L-leucyl-L-alanyl-L-leucyl-L-histidyl-L-histidyl-L-leucyl-L-alanyl-L-histidyl-L-leucyl-L-alanyl-L-histidyl-L-histidyl-L-leucyl-L-alanyl-L-leucyl-L-alanyl-L-leucyl-L-lysyl-L-lysyl-L-alanine
L-Lysyl-L-lysyl-L-alanyl-L-leucyl-L-leucyl-L-alanyl-L-leucyl-L-alanyl-L-leucyl-L-histidyl-L-histidyl-L-leucyl-L-alanyl-L-histidyl-L-leucyl-L-alanyl-L-histidyl-L-histidyl-L-leucyl-L-alanyl-L-leucyl-L-alanyl-L-leucyl-L-lysyl-L-lysyl-L-alanine
Catalogue No.:PA PEP 003805
CAS :
476169-12-7
Molecular Formula : C132H224N40O27
Molecular Weight : 2803.5

![(5-((3aS,4S,6aR)-2-Oxohexahydro-1H-thieno[3,4-d]im PA PEP 003807](https://www.pharmaffiliates.com/pimages/PAPEP003807.jpg)
(5-((3aS,4S,6aR)-2-Oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanoyl)-L-arginyl-L-prolyl-L-prolylglycyl-L-phenylalanyl-L-seryl-L-prolyl-L-phenylalanyl-L-arginine
(5-((3aS,4S,6aR)-2-Oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanoyl)-L-arginyl-L-prolyl-L-prolylglycyl-L-phenylalanyl-L-seryl-L-prolyl-L-phenylalanyl-L-arginine
Catalogue No.:PA PEP 003807
CAS :
477319-71-4
Molecular Formula : C60H87N17O13S
Molecular Weight : 1286.52

![(R)-2-((R)-2-(2-([1,1'-Biphenyl]-4-yl)acetamido)-3 PA PEP 003808](https://www.pharmaffiliates.com/pimages/PAPEP003808.jpg)
(R)-2-((R)-2-(2-([1,1'-Biphenyl]-4-yl)acetamido)-3-(methylthio)propanamido)-5-guanidino-N-((S)-1-oxo-1-(phenethylamino)-3-phenylpropan-2-yl)pentanamide
(R)-2-((R)-2-(2-([1,1'-Biphenyl]-4-yl)acetamido)-3-(methylthio)propanamido)-5-guanidino-N-((S)-1-oxo-1-(phenethylamino)-3-phenylpropan-2-yl)pentanamide
Catalogue No.:PA PEP 003808
CAS :
478164-48-6
Molecular Formula : C41H49N7O4S
Molecular Weight : 735.95


(5S,11S,14S,17S)-11-((1H-Indol-3-yl)methyl)-17-(((S)-1-amino-1-oxo-3-phenylpropan-2-yl)carbamoyl)-5-((S)-2-amino-3-(4-hydroxyphenyl)propanamido)-14-(2-(methylthio)ethyl)-6,9,12,15-tetraoxo-2-thia-7,10,13,16-tetraazanonadecan-19-oic Acid
(5S,11S,14S,17S)-11-((1H-Indol-3-yl)methyl)-17-(((S)-1-amino-1-oxo-3-phenylpropan-2-yl)carbamoyl)-5-((S)-2-amino-3-(4-hydroxyphenyl)propanamido)-14-(2-(methylthio)ethyl)-6,9,12,15-tetraoxo-2-thia-7,10,13,16-tetraazanonadecan-19-oic Acid
Catalogue No.:PA PEP 003812
CAS :
47910-79-2
Molecular Formula : C45H57N9O10S2
Molecular Weight : 948.12


(S)-1-((3S,6S,9S,12S,18S,21S)-3-((1H-Imidazol-5-yl)methyl)-6-((1H-indol-3-yl)methyl)-21-(3-amino-3-oxopropyl)-12-(4-hydroxybenzyl)-9-(hydroxymethyl)-18 isobutyl-1,4,7,10,13,16,19-heptaoxo-1-((S)-5-oxopyrrolidin-2-yl)-2,5,8,11,14,17,20-heptaazadocosan-22-oyl)-N-(2-amino-2-oxoethyl)pyrrolidine-2-carboxamide
(S)-1-((3S,6S,9S,12S,18S,21S)-3-((1H-Imidazol-5-yl)methyl)-6-((1H-indol-3-yl)methyl)-21-(3-amino-3-oxopropyl)-12-(4-hydroxybenzyl)-9-(hydroxymethyl)-18-isobutyl-1,4,7,10,13,16,19-heptaoxo-1-((S)-5-oxopyrrolidin-2-yl)-2,5,8,11,14,17,20-heptaazadocosan-22-oyl)-N-(2-amino-2-oxoethyl)pyrrolidine-2-carboxamide
Catalogue No.:PA PEP 003813
CAS :
47922-48-5
Molecular Formula : C54H71N15O14
Molecular Weight : 1154.25


N-(1-Oxotetradecyl)glycyl-L-alanyl-L-glutaminyl-L-phenylalanyl-L-seryl-L-lysyl-L-threonyl-L-alanyl-L-alanyl-L-lysylglycyl-L-α-glutamyl-L-alanyl-L-alanyl-L-alanyl-L-α-glutamyl-L-arginyl-L-prolylglycyl-L-α-glutamyl-L-alanyl-L-alanyl-L-valyl-L-alanine
N-(1-Oxotetradecyl)glycyl-L-alanyl-L-glutaminyl-L-phenylalanyl-L-seryl-L-lysyl-L-threonyl-L-alanyl-L-alanyl-L-lysylglycyl-L-α-glutamyl-L-alanyl-L-alanyl-L-alanyl-L-α-glutamyl-L-arginyl-L-prolylglycyl-L-α-glutamyl-L-alanyl-L-alanyl-L-valyl-L-alanine
Catalogue No.:PA PEP 003814
CAS :
479482-23-0
Molecular Formula : C111H184N30O35
Molecular Weight : 2498.87


L-Valyl-L-lysyl-L-valyl-L-lysyl-L-valyl-L-lysyl-L-valyl-L-lysyl-L-valyl-D-prolyl-L-prolyl-L-threonyl-L-lysyl-L-valyl-L-lysyl-L-valyl-L-lysyl-L-valyl-L-lysyl-L-valinamide
L-Valyl-L-lysyl-L-valyl-L-lysyl-L-valyl-L-lysyl-L-valyl-L-lysyl-L-valyl-D-prolyl-L-prolyl-L-threonyl-L-lysyl-L-valyl-L-lysyl-L-valyl-L-lysyl-L-valyl-L-lysyl-L-valinamide
Catalogue No.:PA PEP 003818
CAS :
487036-63-5
Molecular Formula : C107H201N29O21
Molecular Weight : 2229.97


(2S,5S,8S,11S,14S,17S,20S,23S,26S,29S)-11-((1H-Indol-3-yl)methyl)-29-amino-8-(4-aminobutyl)-23-benzyl-17-(carboxymethyl)-26-((R)-1-hydroxyethyl)-20-(hydroxymethyl)-2,5,14-triisobutyl-4,7,10,13,16,19,22,25,28-nonaoxo-3,6,9,12,15,18,21,24,27-nonaazadotriacontanedioic Acid
(2S,5S,8S,11S,14S,17S,20S,23S,26S,29S)-11-((1H-Indol-3-yl)methyl)-29-amino-8-(4-aminobutyl)-23-benzyl-17-(carboxymethyl)-26-((R)-1-hydroxyethyl)-20-(hydroxymethyl)-2,5,14-triisobutyl-4,7,10,13,16,19,22,25,28-nonaoxo-3,6,9,12,15,18,21,24,27-nonaazadotriacontanedioic Acid
Catalogue No.:PA PEP 003819
CAS :
488118-64-5
Molecular Formula : C60H90N12O17
Molecular Weight : 1251.45


(2S,5S,8S,11S,17S,20S,23S,26S,29S,32S,35S,38S,41S,44S)-44-Amino-23-(2-amino-2-oxoethyl)-17,20-bis(3-amino-3-oxopropyl)-5,11-bis(4-aminobutyl)-26-(2-carboxyethyl)-38-(4-hydroxybenzyl)-8-(hydroxymethyl)-32,35,41-triisopropyl-2,29-dimethyl-4,7,10,13,16,19,22,25,28,31,34,37,40,43-tetradecaoxo-3,6,9,12,15,18,21,24,27,30,33,36,39,42-tetradecaazaheptatetracontanedioic Acid
(2S,5S,8S,11S,17S,20S,23S,26S,29S,32S,35S,38S,41S,44S)-44-Amino-23-(2-amino-2-oxoethyl)-17,20-bis(3-amino-3-oxopropyl)-5,11-bis(4-aminobutyl)-26-(2-carboxyethyl)-38-(4-hydroxybenzyl)-8-(hydroxymethyl)-32,35,41-triisopropyl-2,29-dimethyl-4,7,10,13,16,19,22,25,28,31,34,37,40,43-tetradecaoxo-3,6,9,12,15,18,21,24,27,30,33,36,39,42-tetradecaazaheptatetracontanedioic Acid
Catalogue No.:PA PEP 003826
CAS :
499993-62-3
Molecular Formula : C71H116N20O25
Molecular Weight : 1649.82


(S)-1-((4R,7S,10S,13S,16S)-7-(2-Amino-2-oxoethyl)-13-benzyl-10-(cyclohexylmethyl)-16-(4-hydroxybenzyl)-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentaazacycloicosane-4-carbonyl)-N-((S)-1-((2-amino-2-oxoethyl)amino)-5-guanidino-1-oxopentan-2-yl)pyrrolidine-2-carboxamide
(S)-1-((4R,7S,10S,13S,16S)-7-(2-Amino-2-oxoethyl)-13-benzyl-10-(cyclohexylmethyl)-16-(4-hydroxybenzyl)-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentaazacycloicosane-4-carbonyl)-N-((S)-1-((2-amino-2-oxoethyl)amino)-5-guanidino-1-oxopentan-2-yl)pyrrolidine-2-carboxamide
Catalogue No.:PA PEP 003827
CAS :
500170-27-4
Molecular Formula : C50H71N13O11S2
Molecular Weight : 1094.32


2,2,2-Trifluoroacetic acid--2-((2S,5R,8S,11S)-8-(4-aminobutyl)-5-benzyl-11-(3-guanidinopropyl)-3,6,9,12,15-pentaoxo-1,4,7,10,13-pentaazacyclopentadecan-2-yl)acetic Acid (1/1)
2,2,2-Trifluoroacetic acid--2-((2S,5R,8S,11S)-8-(4-aminobutyl)-5-benzyl-11-(3-guanidinopropyl)-3,6,9,12,15-pentaoxo-1,4,7,10,13-pentaazacyclopentadecan-2-yl)acetic Acid (1/1)
Catalogue No.:PA PEP 003828
CAS :
500577-51-5
Molecular Formula : C29H42F3N9O9
Molecular Weight : 717.7


L-Leucyl-L-glutamyl-L-asparaginyl-L-prolyl-L-seryl-L-prolyl-L-glutaminyl-L-alanyl-L-prolyl-L-alanyl-L-arginyl-L-arginyl-L-leucyl-L-leucyl-L-prolyl-L-proline
L-Leucyl-L-glutamyl-L-asparaginyl-L-prolyl-L-seryl-L-prolyl-L-glutaminyl-L-alanyl-L-prolyl-L-alanyl-L-arginyl-L-arginyl-L-leucyl-L-leucyl-L-prolyl-L-proline
Catalogue No.:PA PEP 003833
CAS :
501036-69-7
Molecular Formula : C78H130N24O22
Molecular Weight : 1756.04