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.
Glycyl-L-valyl-L-leucyl-L-seryl-L-asparaginyl-L-valyl-L-isoleucylglycyl-L-tyrosyl-L-leucyl-L-lysyl-L-lysyl-L-leucylglycyl-L-threonylglycyl-L-alanyl-L-leucyl-L-asparaginyl-L-alanyl-L-valyl-L-leucyl-L-lysyl-L-glutamine
Glycyl-L-valyl-L-leucyl-L-seryl-L-asparaginyl-L-valyl-L-isoleucylglycyl-L-tyrosyl-L-leucyl-L-lysyl-L-lysyl-L-leucylglycyl-L-threonylglycyl-L-alanyl-L-leucyl-L-asparaginyl-L-alanyl-L-valyl-L-leucyl-L-lysyl-L-glutamine
Catalogue No.:PA PEP 001685
CAS :
136831-50-0
Molecular Formula : C112H194N30O31
Molecular Weight : 2456.96
Glycyl-L-leucyl-L-tryptophyl-L-arginyl-L-alanyl-L-leucyl-L-tryptophyl-L-arginyl-L-leucyl-L-leucyl-L-arginyl-L-seryl-L-leucyl-L-tryptophyl-L-arginyl-L-leucyl-L-leucyl-L-tryptophyl-L-arginyl-L-alanine
Glycyl-L-leucyl-L-tryptophyl-L-arginyl-L-alanyl-L-leucyl-L-tryptophyl-L-arginyl-L-leucyl-L-leucyl-L-arginyl-L-seryl-L-leucyl-L-tryptophyl-L-arginyl-L-leucyl-L-leucyl-L-tryptophyl-L-arginyl-L-alanine
Catalogue No.:PA PEP 001687
CAS :
1369966-01-7
Molecular Formula : C127H197N39O22
Molecular Weight : 2622.22
(S)-3-((S)-2-((S)-2-((S)-2-((S)-2-((2S,3S)-2-((S)-1-(L-Alanyl-L-histidyl-L-histidyl)pyrrolidine-2-carboxamido)-3-methylpentanamido)-3-(1H-indol-3-yl)propanamido)propanamido)-5-guanidinopentanamido)-4-(methylthio)butanamido)-4-(((S)-1-carboxyethyl)amino)-4-oxobutanoic Acid
(S)-3-((S)-2-((S)-2-((S)-2-((S)-2-((2S,3S)-2-((S)-1-(L-Alanyl-L-histidyl-L-histidyl)pyrrolidine-2-carboxamido)-3-methylpentanamido)-3-(1H-indol-3-yl)propanamido)propanamido)-5-guanidinopentanamido)-4-(methylthio)butanamido)-4-(((S)-1-carboxyethyl)amino)-4-oxobutanoic Acid
Catalogue No.:PA PEP 001691
CAS :
1370451-15-2
Molecular Formula : C58H85N19O14S
Molecular Weight : 1304.5
(S)-5-Guanidino-2-(2-((R)-2-(methylsulfonamido)-3-phenylpropanamido)acetamido)-N-(4-nitrophenyl)pentanamide
(S)-5-Guanidino-2-(2-((R)-2-(methylsulfonamido)-3-phenylpropanamido)acetamido)-N-(4-nitrophenyl)pentanamide
Catalogue No.:PA PEP 001693
CAS :
137051-68-4
Molecular Formula : C24H32N8O7S
Molecular Weight : 576.63
(S)-4-(((S)-1-(((S)-1-(((S)-1-(((R)-1-((S)-1-(((S)-1-Amino-4-(methylthio)-1-oxobutan-2-yl)amino)-4-methyl-1-oxopentan-2-yl)-2-oxopyrrolidin-3-yl)amino)-3-methyl-1-oxobutan-2-yl)amino)-1-oxo-3-phenylpropan-2-yl)amino)-3-hydroxy-1-oxopropan-2-yl)amino)-3-((S)-2,6-diaminohexanamido)-4-oxobutanoic Acid
(S)-4-(((S)-1-(((S)-1-(((S)-1-(((R)-1-((S)-1-(((S)-1-Amino-4-(methylthio)-1-oxobutan-2-yl)amino)-4-methyl-1-oxopentan-2-yl)-2-oxopyrrolidin-3-yl)amino)-3-methyl-1-oxobutan-2-yl)amino)-1-oxo-3-phenylpropan-2-yl)amino)-3-hydroxy-1-oxopropan-2-yl)amino)-3-((S)-2,6-diaminohexanamido)-4-oxobutanoic Acid
Catalogue No.:PA PEP 001707
CAS :
137593-52-3
Molecular Formula : C42H68N10O11S
Molecular Weight : 921.13
L-Alanyl-L-seryl-L-phenylalanyl-L-α-glutamyl-L-alanyl-L-glutaminylglycyl-L-alanyl-L-leucyl-L-alanyl-L-asparaginyl-L-isoleucyl-L-alanyl-L-valyl-L-α-aspartyl-L-lysyl-L-alanine
L-Alanyl-L-seryl-L-phenylalanyl-L-α-glutamyl-L-alanyl-L-glutaminylglycyl-L-alanyl-L-leucyl-L-alanyl-L-asparaginyl-L-isoleucyl-L-alanyl-L-valyl-L-α-aspartyl-L-lysyl-L-alanine
Catalogue No.:PA PEP 001710
CAS :
137756-45-7
Molecular Formula : C73H118N20O25
Molecular Weight : 1675.86
(S)-N1-((2S,5S,8S,14S,17S,20S)-14-((1H-Imidazol-5-yl)methyl)-20-carbamoyl-1-(1H-indol-3-yl)-17-isobutyl-8-isopropyl-5,22-dimethyl-3,6,9,12,15-pentaoxo-4,7,10,13,16,19-hexaazatricosan-2-yl)-2-((R)-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole-3-carboxamido)pentanediamide
(S)-N1-((2S,5S,8S,14S,17S,20S)-14-((1H-Imidazol-5-yl)methyl)-20-carbamoyl-1-(1H-indol-3-yl)-17-isobutyl-8-isopropyl-5,22-dimethyl-3,6,9,12,15-pentaoxo-4,7,10,13,16,19-hexaazatricosan-2-yl)-2-((R)-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole-3-carboxamido)pentanediamide
Catalogue No.:PA PEP 001718
CAS :
138147-78-1
Molecular Formula : C56H79N15O9
Molecular Weight : 1106.34
L-Alanyl-L-leucyl-L-tyrosyl-L-lysyl-L-lysyl-L-leucyl-L-leucyl-L-lysyl-L-lysyl-L-leucyl-L-leucyl-L-lysyl-L-seryl-L-alanyl-L-lysyl-L-lysyl-L-leucylglycine
L-Alanyl-L-leucyl-L-tyrosyl-L-lysyl-L-lysyl-L-leucyl-L-leucyl-L-lysyl-L-lysyl-L-leucyl-L-leucyl-L-lysyl-L-seryl-L-alanyl-L-lysyl-L-lysyl-L-leucylglycine
Catalogue No.:PA PEP 001728
CAS :
138555-82-5
Molecular Formula : C98H179N25O21
Molecular Weight : 2043.66
(S)-N-((S)-1-(((S)-6-Acetamido-1-((4-methyl-2-oxo-2H-chromen-7-yl)amino)-1-oxohexan-2-yl)amino)-6-amino-1-oxohexan-2-yl)-1-(acetyl-L-glutaminyl)pyrrolidine-2-carboxamide
(S)-N-((S)-1-(((S)-6-Acetamido-1-((4-methyl-2-oxo-2H-chromen-7-yl)amino)-1-oxohexan-2-yl)amino)-6-amino-1-oxohexan-2-yl)-1-(acetyl-L-glutaminyl)pyrrolidine-2-carboxamide
Catalogue No.:PA PEP 001733
CAS :
1387005-23-3
Molecular Formula : C36H52N8O9
Molecular Weight : 740.86
((S)-2-((S)-2-((S)-4-Carboxy-2-((S)-4-carboxy-2-((S)-1-((3-carboxypropanoyl)-L-phenylalanyl-L-glutamyl-L-prolyl-L-isoleucyl)pyrrolidine-2-carboxamido)butanamido)butanamido)-3-(4-hydroxyphenyl)propanamido)-3-cyclohexylpropanoyl)-L-glutamine
((S)-2-((S)-2-((S)-4-Carboxy-2-((S)-4-carboxy-2-((S)-1-((3-carboxypropanoyl)-L-phenylalanyl-L-glutamyl-L-prolyl-L-isoleucyl)pyrrolidine-2-carboxamido)butanamido)butanamido)-3-(4-hydroxyphenyl)propanamido)-3-cyclohexylpropanoyl)-L-glutamine
Catalogue No.:PA PEP 001734
CAS :
138828-04-3
Molecular Formula : C67H93N11O22
Molecular Weight : 1404.54
((4R,7S,10S,13S,16R)-16-Amino-7-((R)-1-hydroxyethyl)-13-(hydroxymethyl)-10-isopropyl-6,9,12,15-tetraoxo-1,2-dithia-5,8,11,14-tetraazacycloheptadecane-4-carbonyl)glycine
((4R,7S,10S,13S,16R)-16-Amino-7-((R)-1-hydroxyethyl)-13-(hydroxymethyl)-10-isopropyl-6,9,12,15-tetraoxo-1,2-dithia-5,8,11,14-tetraazacycloheptadecane-4-carbonyl)glycine
Catalogue No.:PA PEP 001735
CAS :
138849-26-0
Molecular Formula : C20H34N6O9S2
Molecular Weight : 566.65
(2S,3S)-2-((6S,9S,12S,15S)-12-((1H-Indol-3-yl)methyl)-1,6-diamino-9-((S)-sec-butyl)-1-imino-15-isopropyl-7,10,13-trioxo-2,8,11,14-tetraazahexadecan-16-amido)-N-((S)-1-(((S)-1-(((S)-1-amino-5-guanidino-1-oxopentan-2-yl)amino)-5-guanidino-1-oxopentan-2-yl)amino)-3-(1H-indol-3-yl)-1-oxopropan-2-yl)-3-methylpentanamide
(2S,3S)-2-((6S,9S,12S,15S)-12-((1H-Indol-3-yl)methyl)-1,6-diamino-9-((S)-sec-butyl)-1-imino-15-isopropyl-7,10,13-trioxo-2,8,11,14-tetraazahexadecan-16-amido)-N-((S)-1-(((S)-1-(((S)-1-amino-5-guanidino-1-oxopentan-2-yl)amino)-5-guanidino-1-oxopentan-2-yl)amino)-3-(1H-indol-3-yl)-1-oxopropan-2-yl)-3-methylpentanamide
Catalogue No.:PA PEP 001741
CAS :
1391837-43-6
Molecular Formula : C57H90N20O8
Molecular Weight : 1183.48
2,2'-((3S,6R,11R,14S,20S,23S,31aS)-11-Amino-23-(4-aminobutyl)-6-carboxy-14-(3-guanidinopropyl)-1,4,12,15,18,21,24,27-octaoxooctacosahydro-1H-pyrrolo[2,1-j][1,2]dithia[5,8,11,14,17,20,23,26]octaazacyclononacosine-3,20-diyl)diacetic Acid
2,2'-((3S,6R,11R,14S,20S,23S,31aS)-11-Amino-23-(4-aminobutyl)-6-carboxy-14-(3-guanidinopropyl)-1,4,12,15,18,21,24,27-octaoxooctacosahydro-1H-pyrrolo[2,1-j][1,2]dithia[5,8,11,14,17,20,23,26]octaazacyclononacosine-3,20-diyl)diacetic Acid
Catalogue No.:PA PEP 001743
CAS :
1392278-76-0
Molecular Formula : C35H57N13O14S2
Molecular Weight : 948.04
Glycyl-L-alanyl-L-leucyl-L-phenylalanyl-L-leucyl-L-alanyl-L-phenylalanyl-L-leucyl-L-alanyl-L-alanyl-L-alanyl-L-leucyl-L-seryl-L-leucyl-L-methionylglycyl-L-leucyl-L-tryptophyl-L-seryl-L-glutaminyl-L-prolyl-L-lysyl-L-lysyl-L-lysyl-L-arginyl-L-arginyl-L-valine
Glycyl-L-alanyl-L-leucyl-L-phenylalanyl-L-leucyl-L-alanyl-L-phenylalanyl-L-leucyl-L-alanyl-L-alanyl-L-alanyl-L-leucyl-L-seryl-L-leucyl-L-methionylglycyl-L-leucyl-L-tryptophyl-L-seryl-L-glutaminyl-L-prolyl-L-lysyl-L-lysyl-L-lysyl-L-arginyl-L-arginyl-L-valine
Catalogue No.:PA PEP 001745
CAS :
1392498-36-0
Molecular Formula : C140H230N38O31S
Molecular Weight : 2973.68
L-Lysyl-L-glutamyl-L-methionyl-L-prolyl-L-phenylalanyl-L-prolyl-L-lysyl-L-tyrosyl-L-prolyl-L-valyl-L-glutamyl-L-proline
L-Lysyl-L-glutamyl-L-methionyl-L-prolyl-L-phenylalanyl-L-prolyl-L-lysyl-L-tyrosyl-L-prolyl-L-valyl-L-glutamyl-L-proline
Catalogue No.:PA PEP 001746
CAS :
1393589-51-9
Molecular Formula : C70H104N14O18S
Molecular Weight : 1461.74
L-Lysyl-L-tryptophyl-L-lysyl-L-seryl-L-phenylalanyl-L-isoleucyl-L-lysyl-L-lysyl-L-leucyl-L-threonyl-L-lysyl-L-lysyl-L-phenylalanyl-L-leucyl-L-histidyl-L-seryl-L-alanyl-L-lysyl-L-lysyl-L-phenylalaninamide
L-Lysyl-L-tryptophyl-L-lysyl-L-seryl-L-phenylalanyl-L-isoleucyl-L-lysyl-L-lysyl-L-leucyl-L-threonyl-L-lysyl-L-lysyl-L-phenylalanyl-L-leucyl-L-histidyl-L-seryl-L-alanyl-L-lysyl-L-lysyl-L-phenylalaninamide
Catalogue No.:PA PEP 001751
CAS :
1398109-79-9
Molecular Formula : C123H198N32O23
Molecular Weight : 2493.14
Glycylglycyl-L-alanyl-L-seryl-L-cysteinyl-L-cysteinyl-L-leucyl-L-tyrosyl-L-cysteinyl-L-arginyl-L-cysteinyl-L-histidine
Glycylglycyl-L-alanyl-L-seryl-L-cysteinyl-L-cysteinyl-L-leucyl-L-tyrosyl-L-cysteinyl-L-arginyl-L-cysteinyl-L-histidine
Catalogue No.:PA PEP 001753
CAS :
1401180-68-4
Molecular Formula : C49H77N17O15S4
Molecular Weight : 1272.5
(S)-N-((2S,3R)-1-Amino-3-hydroxy-1-oxobutan-2-yl)-5-guanidino-2-((2S,5S,8S,11S)-11-(hydroxymethyl)-2,5,8-triisopropyl-4,7,10,13-tetraoxo-3,6,9,12-tetraazatetradecanamido)pentanamide
(S)-N-((2S,3R)-1-Amino-3-hydroxy-1-oxobutan-2-yl)-5-guanidino-2-((2S,5S,8S,11S)-11-(hydroxymethyl)-2,5,8-triisopropyl-4,7,10,13-tetraoxo-3,6,9,12-tetraazatetradecanamido)pentanamide
Catalogue No.:PA PEP 001754
CAS :
1401804-69-0
Molecular Formula : C30H56N10O9
Molecular Weight : 700.84
Glycyl-L-lysyl-L-cysteinyl-L-seryl-L-threonyl-L-arginylglycyl-L-arginyl-L-lysyl-L-cysteinyl-L-cysteinyl-L-arginyl-L-arginyl-L-lysyl-L-lysine
Glycyl-L-lysyl-L-cysteinyl-L-seryl-L-threonyl-L-arginylglycyl-L-arginyl-L-lysyl-L-cysteinyl-L-cysteinyl-L-arginyl-L-arginyl-L-lysyl-L-lysine
Catalogue No.:PA PEP 001757
CAS :
1403753-45-6
Molecular Formula : C68H131N31O18S3
Molecular Weight : 1767.18
L-Arginyl-L-alanyl-L-isoleucylglycylglycylglycyl-L-leucyl-L-seryl-L-seryl-L-valylglycylglycylglycyl-L-seryl-L-seryl-L-threonyl-L-isoleucyl-L-lysyl-L-tyrosine
L-Arginyl-L-alanyl-L-isoleucylglycylglycylglycyl-L-leucyl-L-seryl-L-seryl-L-valylglycylglycylglycyl-L-seryl-L-seryl-L-threonyl-L-isoleucyl-L-lysyl-L-tyrosine
Catalogue No.:PA PEP 001761
CAS :
1404488-98-7
Molecular Formula : C75H127N23O26
Molecular Weight : 1766.98
(S)-1-(L-Tyrosyl)-N-((R)-1-(((S)-1-(((R)-1-(((R)-1-(((S)-1-amino-4-(methylthio)-1-oxobutan-2-yl)amino)-3-(1H-indol-3-yl)-1-oxopropan-2-yl)amino)-1-oxo-3-phenylpropan-2-yl)amino)-1-oxo-3-phenylpropan-2-yl)amino)-1-oxo-3-phenylpropan-2-yl)pyrrolidine-2-carboxamide
(S)-1-(L-Tyrosyl)-N-((R)-1-(((S)-1-(((R)-1-(((R)-1-(((S)-1-amino-4-(methylthio)-1-oxobutan-2-yl)amino)-3-(1H-indol-3-yl)-1-oxopropan-2-yl)amino)-1-oxo-3-phenylpropan-2-yl)amino)-1-oxo-3-phenylpropan-2-yl)amino)-1-oxo-3-phenylpropan-2-yl)pyrrolidine-2-carboxamide
Catalogue No.:PA PEP 001764
CAS :
140716-14-9
Molecular Formula : C57H65N9O8S
Molecular Weight : 1036.26
L-Cysteinyl-L-lysyl-L-arginyl-L-tryptophyl-L-tryptophyl-L-lysyl-L-tryptophyl-L-isoleucyl-L-arginyl-L-tryptophanamide
L-Cysteinyl-L-lysyl-L-arginyl-L-tryptophyl-L-tryptophyl-L-lysyl-L-tryptophyl-L-isoleucyl-L-arginyl-L-tryptophanamide
Catalogue No.:PA PEP 001765
CAS :
1408311-03-4
Molecular Formula : C77H107N23O10S
Molecular Weight : 1546.91
