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.
L-Tryptophylglycyl-L-leucylglycylglycyl-L-threonyl-L-cysteinyl-L-valyl-L-asparaginyl-L-valylglycyl-L-cysteinyl-L-isoleucyl-L-prolyl-L-lysine
L-Tryptophylglycyl-L-leucylglycylglycyl-L-threonyl-L-cysteinyl-L-valyl-L-asparaginyl-L-valylglycyl-L-cysteinyl-L-isoleucyl-L-prolyl-L-lysine
Catalogue No.:PA PEP 004932
CAS :
950890-23-0
Molecular Formula : C66H106N18O18S2
Molecular Weight : 1503.8
4-(((S)-3-Methyl-1-((S)-2-(((S)-1-((4-nitrophenyl)amino)-1-oxo-3-phenylpropan-2-yl)carbamoyl)pyrrolidin-1-yl)-1-oxobutan-2-yl)amino)-4-oxobutanoic Acid
4-(((S)-3-Methyl-1-((S)-2-(((S)-1-((4-nitrophenyl)amino)-1-oxo-3-phenylpropan-2-yl)carbamoyl)pyrrolidin-1-yl)-1-oxobutan-2-yl)amino)-4-oxobutanoic Acid
Catalogue No.:PA PEP 004947
CAS :
95192-11-3
Molecular Formula : C29H35N5O8
Molecular Weight : 581.63
4-(((S)-1-((S)-2-(((S)-1-(Benzylthio)-1-oxo-3-phenylpropan-2-yl)carbamoyl)pyrrolidin-1-yl)-3-methyl-1-oxobutan-2-yl)amino)-4-oxobutanoic Acid
4-(((S)-1-((S)-2-(((S)-1-(Benzylthio)-1-oxo-3-phenylpropan-2-yl)carbamoyl)pyrrolidin-1-yl)-3-methyl-1-oxobutan-2-yl)amino)-4-oxobutanoic Acid
Catalogue No.:PA PEP 004948
CAS :
95192-51-1
Molecular Formula : C30H37N3O6S
Molecular Weight : 567.7
2-Piperazinecarboxamide, N4-[N-(1-oxoheptyl)-L-cysteinyl-L-histidyl-L-phenylalanyl-D-alanylglycyl-L-arginyl-D-norleucyl-L-α-aspartyl-L-arginyl-L-isoleucyl-L-seryl-L-cysteinyl-L-tyrosyl]-5-[3-[(aminoiminomethyl)amino]propyl]-6-oxo-, cyclic (1→12)-disulfide, (2R,5S)
2-Piperazinecarboxamide, N4-[N-(1-oxoheptyl)-L-cysteinyl-L-histidyl-L-phenylalanyl-D-alanylglycyl-L-arginyl-D-norleucyl-L-α-aspartyl-L-arginyl-L-isoleucyl-L-seryl-L-cysteinyl-L-tyrosyl]-5-[3-[(aminoiminomethyl)amino]propyl]-6-oxo-, cyclic (1→12)-disulfide, (2R,5S)
Catalogue No.:PA PEP 004951
CAS :
952295-80-6
Molecular Formula : C82H127N27O20S2
Molecular Weight : 1875.21
L-Leucyl-L-isoleucyl-L-arginyl-L-leucyl-L-tryptophyl-L-seryl-L-histidyl-L-leucyl-L-isoleucyl-L-histidyl-L-isoleucyl-L-tryptophyl-L-phenylalanyl-L-glutaminyl-L-asparaginyl-L-arginyl-L-arginyl-L-leucyl-L-lysyl-L-tryptophyl-L-lysyl-L-lysyl-L-lysinamide
L-Leucyl-L-isoleucyl-L-arginyl-L-leucyl-L-tryptophyl-L-seryl-L-histidyl-L-leucyl-L-isoleucyl-L-histidyl-L-isoleucyl-L-tryptophyl-L-phenylalanyl-L-glutaminyl-L-asparaginyl-L-arginyl-L-arginyl-L-leucyl-L-lysyl-L-tryptophyl-L-lysyl-L-lysyl-L-lysinamide
Catalogue No.:PA PEP 004954
CAS :
952754-66-4
Molecular Formula : C150H236N46O26
Molecular Weight : 3099.83
D-α-Aspartyl-D-glutaminyl-D-seryl-D-arginyl-D-prolyl-D-valyl-D-glutaminyl-D-prolyl-D-phenylalanyl-D-leucyl-D-asparaginyl-D-leucyl-D-threonyl-D-threonyl-D-prolyl-D-arginyl-D-lysyl-D-prolyl-D-arginine
D-α-Aspartyl-D-glutaminyl-D-seryl-D-arginyl-D-prolyl-D-valyl-D-glutaminyl-D-prolyl-D-phenylalanyl-D-leucyl-D-asparaginyl-D-leucyl-D-threonyl-D-threonyl-D-prolyl-D-arginyl-D-lysyl-D-prolyl-D-arginine
Catalogue No.:PA PEP 004956
CAS :
954134-42-0
Molecular Formula : C99H164N32O28
Molecular Weight : 2250.6
Methyl ((2R,3R)-3-((S)-1-((3R,4S,5S)-4-((S)-N,3-dimethyl-2-((S)-3-methyl-2-(methylamino)butanamido)butanamido)-3-methoxy-5-methylheptanoyl)pyrrolidin-2-yl)-3-methoxy-2-methylpropanoyl)-L-phenylalaninate
Methyl ((2R,3R)-3-((S)-1-((3R,4S,5S)-4-((S)-N,3-dimethyl-2-((S)-3-methyl-2-(methylamino)butanamido)butanamido)-3-methoxy-5-methylheptanoyl)pyrrolidin-2-yl)-3-methoxy-2-methylpropanoyl)-L-phenylalaninate
Catalogue No.:PA PEP 004960
CAS :
863971-12-4
Molecular Formula : C40H67N5O8
Molecular Weight : 746
((2R,3R)-3-((S)-1-((3R,4S,5S)-4-((S)-2-((S)-2-((((4-((S)-2-((S)-2-(6-(2,5-Dioxo-2,5-dihydro-1H-pyrrol-1-yl)hexanamido)-3-methylbutanamido)-5-ureidopentanamido)benzyl)oxy)carbonyl)(methyl)amino)-3-methylbutanamido)-N,3-dimethylbutanamido)-3-methoxy-5-methylheptanoyl)pyrrolidin-2-yl)-3-methoxy-2-methylpropanoyl)-L-phenylalanine
((2R,3R)-3-((S)-1-((3R,4S,5S)-4-((S)-2-((S)-2-((((4-((S)-2-((S)-2-(6-(2,5-Dioxo-2,5-dihydro-1H-pyrrol-1-yl)hexanamido)-3-methylbutanamido)-5-ureidopentanamido)benzyl)oxy)carbonyl)(methyl)amino)-3-methylbutanamido)-N,3-dimethylbutanamido)-3-methoxy-5-methylheptanoyl)pyrrolidin-2-yl)-3-methoxy-2-methylpropanoyl)-L-phenylalanine
Catalogue No.:PA PEP 004969
CAS :
863971-17-9
Molecular Formula : C68H103N11O16
Molecular Weight : 1330.63
(9H-Fluoren-9-yl)methyl ((S)-1-(((S)-1-(((3R,4S,5S)-1-((S)-2-((1R,2R)-3-(((1S,2R)-1-hydroxy-1-phenylpropan-2-yl)amino)-1-methoxy-2-methyl-3-oxopropyl)pyrrolidin-1-yl)-3-methoxy-5-methyl-1-oxoheptan-4-yl)(methyl)amino)-3-methyl-1-oxobutan-2-yl)amino)-3-methyl-1-oxobutan-2-yl)(methyl)carbamate
(9H-Fluoren-9-yl)methyl ((S)-1-(((S)-1-(((3R,4S,5S)-1-((S)-2-((1R,2R)-3-(((1S,2R)-1-hydroxy-1-phenylpropan-2-yl)amino)-1-methoxy-2-methyl-3-oxopropyl)pyrrolidin-1-yl)-3-methoxy-5-methyl-1-oxoheptan-4-yl)(methyl)amino)-3-methyl-1-oxobutan-2-yl)amino)-3-methyl-1-oxobutan-2-yl)(methyl)carbamate
Catalogue No.:PA 27 0035870
CAS :
474645-26-6
Molecular Formula : C54H77N5O9
Molecular Weight : 940.24
N2-(4-(((2-Amino-4-oxo-4,8-dihydropteridin-6-yl)methyl)amino)benzoyl)-N5-((S)-3-carboxy-1-(((S)-1-(((S)-3-carboxy-1-(((R)-1-carboxy-2-mercaptoethyl)amino)-1-oxopropan-2-yl)amino)-5-guanidino-1-oxopentan-2-yl)amino)-1-oxopropan-2-yl)-L-glutamine
N2-(4-(((2-Amino-4-oxo-4,8-dihydropteridin-6-yl)methyl)amino)benzoyl)-N5-((S)-3-carboxy-1-(((S)-1-(((S)-3-carboxy-1-(((R)-1-carboxy-2-mercaptoethyl)amino)-1-oxopropan-2-yl)amino)-5-guanidino-1-oxopentan-2-yl)amino)-1-oxopropan-2-yl)-L-glutamine
Catalogue No.:PA PEP 004999
CAS :
625827-91-0
Molecular Formula : C36H46N14O14S
Molecular Weight : 930.91
6-(2,5-Dioxo-2,5-dihydro-1H-pyrrol-1-yl)-N-((S)-1-(((S)-1-(((3R,4S,5S)-1-((S)-2-((1R,2R)-3-(((1S,2R)-1-hydroxy-1-phenylpropan-2-yl)amino)-1-methoxy-2-methyl-3-oxopropyl)pyrrolidin-1-yl)-3-methoxy-5-methyl-1-oxoheptan-4-yl)(methyl)amino)-3-methyl-1-oxobutan-2-yl)amino)-3-methyl-1-oxobutan-2-yl)-N-methylhexanamide
6-(2,5-Dioxo-2,5-dihydro-1H-pyrrol-1-yl)-N-((S)-1-(((S)-1-(((3R,4S,5S)-1-((S)-2-((1R,2R)-3-(((1S,2R)-1-hydroxy-1-phenylpropan-2-yl)amino)-1-methoxy-2-methyl-3-oxopropyl)pyrrolidin-1-yl)-3-methoxy-5-methyl-1-oxoheptan-4-yl)(methyl)amino)-3-methyl-1-oxobutan-2-yl)amino)-3-methyl-1-oxobutan-2-yl)-N-methylhexanamide
Catalogue No.:PA PEP 004950
CAS :
863971-24-8
Molecular Formula : C49H78N6O10
Molecular Weight : 911.2
Methyl ((2R,3R)-3-((S)-1-((3R,4S,5S)-4-((S)-2-((S)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)(methyl)amino)-3-methylbutanamido)-N,3-dimethylbutanamido)-3-methoxy-5-methylheptanoyl)pyrrolidin-2-yl)-3-methoxy-2-methylpropanoyl)-L-phenylalaninate
Methyl ((2R,3R)-3-((S)-1-((3R,4S,5S)-4-((S)-2-((S)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)(methyl)amino)-3-methylbutanamido)-N,3-dimethylbutanamido)-3-methoxy-5-methylheptanoyl)pyrrolidin-2-yl)-3-methoxy-2-methylpropanoyl)-L-phenylalaninate
Catalogue No.:PA PEP 004952
CAS :
863971-38-4
Molecular Formula : C55H77N5O10
Molecular Weight : 968.25
((2R,3R)-3-((S)-1-((3R,4S,5S)-4-((S)-2-((S)-2-((((4-((S)-2-((S)-2-Amino-3-methylbutanamido)-5-ureidopentanamido)benzyl)oxy)carbonyl)(methyl)amino)-3-methylbutanamido)-N,3-dimethylbutanamido)-3-methoxy-5-methylheptanoyl)pyrrolidin-2-yl)-3-methoxy-2-methylpropanoyl)-L-phenylalanine
((2R,3R)-3-((S)-1-((3R,4S,5S)-4-((S)-2-((S)-2-((((4-((S)-2-((S)-2-Amino-3-methylbutanamido)-5-ureidopentanamido)benzyl)oxy)carbonyl)(methyl)amino)-3-methylbutanamido)-N,3-dimethylbutanamido)-3-methoxy-5-methylheptanoyl)pyrrolidin-2-yl)-3-methoxy-2-methylpropanoyl)-L-phenylalanine
Catalogue No.:PA PEP 004957
CAS :
863971-56-6
Molecular Formula : C58H92N10O13
Molecular Weight : 1137.43
Na-(((9H-Fluoren-9-yl)methoxy)carbonyl)-1-(4-((tert-butyldiphenylsilyl)oxy)benzyl)-L-tryptophan
Na-(((9H-Fluoren-9-yl)methoxy)carbonyl)-1-(4-((tert-butyldiphenylsilyl)oxy)benzyl)-L-tryptophan
Catalogue No.:PA PEP 004958
CAS :
NA
Molecular Formula : C49H46N2O5Si
Molecular Weight : 771
S-[1-[[trans-4-[[[[trans-4-[[[(4S)-4,11-Diethyl-3,4,12,14-tetrahydro-4-hydroxy-3,14-dioxo-1H-pyrano[3′,4′:6,7]indolizino[1,2-b]quinolin-9-yl]oxy]carbonyl]cyclohexyl]methyl]amino]carbonyl]cyclohexyl]methyl]-2,5-dioxo-3-pyrrolidinyl]-L-cysteinyl-L-valyl-L-lysyl-L-arginylglycyl-L-leucyl-L-lysyl-L-leucyl-L-arginyl-L-histidyl-L-valyl-L-arginyl-L-prolyl-L-arginyl-L-valyl-L-threonyl-L-arginyl-L-methionyl-L-α-aspartyl-L-valine
S-[1-[[trans-4-[[[[trans-4-[[[(4S)-4,11-Diethyl-3,4,12,14-tetrahydro-4-hydroxy-3,14-dioxo-1H-pyrano[3′,4′:6,7]indolizino[1,2-b]quinolin-9-yl]oxy]carbonyl]cyclohexyl]methyl]amino]carbonyl]cyclohexyl]methyl]-2,5-dioxo-3-pyrrolidinyl]-L-cysteinyl-L-valyl-L-lysyl-L-arginylglycyl-L-leucyl-L-lysyl-L-leucyl-L-arginyl-L-histidyl-L-valyl-L-arginyl-L-prolyl-L-arginyl-L-valyl-L-threonyl-L-arginyl-L-methionyl-L-α-aspartyl-L-valine
Catalogue No.:PA PEP 004970
CAS :
951792-83-9
Molecular Formula : C145H233N43O33S2
Molecular Weight : 3170.85
