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.
(2S,5S,8S,11R,16R,19S,22S,25S)-11,16-Diamino-2,25-bis(3-amino-3-oxopropyl)-5,22-di((S)-sec-butyl)-8,19-bis(4-hydroxybenzyl)-4,7,10,17,20,23-hexaoxo-13,14-dithia-3,6,9,18,21,24-hexaazahexacosanedioic Acid
(2S,5S,8S,11R,16R,19S,22S,25S)-11,16-Diamino-2,25-bis(3-amino-3-oxopropyl)-5,22-di((S)-sec-butyl)-8,19-bis(4-hydroxybenzyl)-4,7,10,17,20,23-hexaoxo-13,14-dithia-3,6,9,18,21,24-hexaazahexacosanedioic Acid
Catalogue No.:PA PEP 000325
CAS :
NA
Molecular Formula : C46H68N10O14S2
Molecular Weight : 1049.23
(S)-N1-((S)-1-(((S)-1-((R)-2-(((S)-1-((2-Amino-2-oxoethyl)amino)-4-methyl-1-oxopentan-2-yl)carbamoyl)pyrrolidin-1-yl)-3-mercapto-1-oxopropan-2-yl)amino)-4-imino-1-oxobutan-2-yl)-2-((2S,3S)-2-((S)-2-((R)-2-amino-3-mercaptopropanamido)-3-(4-hydroxyphenyl)propanamido)-3-methylpentanamido)pentanediamide
(S)-N1-((S)-1-(((S)-1-((R)-2-(((S)-1-((2-Amino-2-oxoethyl)amino)-4-methyl-1-oxopentan-2-yl)carbamoyl)pyrrolidin-1-yl)-3-mercapto-1-oxopropan-2-yl)amino)-4-imino-1-oxobutan-2-yl)-2-((2S,3S)-2-((S)-2-((R)-2-amino-3-mercaptopropanamido)-3-(4-hydroxyphenyl)propanamido)-3-methylpentanamido)pentanediamide
Catalogue No.:PA PEP 000327
CAS :
NA
Molecular Formula : C43H68N12O11S2
Molecular Weight : 993.21
(4R,7S,10S,13R,16S,19R)-13-((1H-Indol-3-yl)methyl)-19-amino-10-(4-aminobutyl)-16-benzyl-7-((R)-1-hydroxyethyl)-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentaazacycloicosane-4-carboxylic Acid
(4R,7S,10S,13R,16S,19R)-13-((1H-Indol-3-yl)methyl)-19-amino-10-(4-aminobutyl)-16-benzyl-7-((R)-1-hydroxyethyl)-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentaazacycloicosane-4-carboxylic Acid
Catalogue No.:PA PEP 000336
CAS :
191806-77-6
Molecular Formula : C36H48N8O8S2
Molecular Weight : 784.95
(S)-6-Amino-2-((R)-2-((S)-2-((R)-2-((R)-2-amino-3-phenylpropanamido)-3-mercaptopropanamido)-3-phenylpropanamido)-3-(1H-indol-3-yl)propanamido)-N-((2S,3R)-1-(((R)-1-(((2R,3R)-1,3-dihydroxybutan-2-yl)amino)-3-mercapto-1-oxopropan-2-yl)amino)-3-hydroxy-1-oxobutan-2-yl)hexanamide
(S)-6-Amino-2-((R)-2-((S)-2-((R)-2-((R)-2-amino-3-phenylpropanamido)-3-mercaptopropanamido)-3-phenylpropanamido)-3-(1H-indol-3-yl)propanamido)-N-((2S,3R)-1-(((R)-1-(((2R,3R)-1,3-dihydroxybutan-2-yl)amino)-3-mercapto-1-oxopropan-2-yl)amino)-3-hydroxy-1-oxobutan-2-yl)hexanamide
Catalogue No.:PA PEP 000337
CAS :
205652-45-5
Molecular Formula : C49H68N10O10S2
Molecular Weight : 1021.26
(4R,7S,10S,13R,16S,19R)-13-((1H-Indol-3-yl)methyl)-N-acetyl-19-((R)-2-amino-3-phenylpropanamido)-10-(4-aminobutyl)-16-benzyl-N-((2R,3R)-1,3-dihydroxybutan-2-yl)-7-((R)-1-hydroxyethyl)-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentaazacycloicosane-4-carboxamide
(4R,7S,10S,13R,16S,19R)-13-((1H-Indol-3-yl)methyl)-N-acetyl-19-((R)-2-amino-3-phenylpropanamido)-10-(4-aminobutyl)-16-benzyl-N-((2R,3R)-1,3-dihydroxybutan-2-yl)-7-((R)-1-hydroxyethyl)-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentaazacycloicosane-4-carboxamide
Catalogue No.:PA PEP 000338
CAS :
1546983-33-8
Molecular Formula : C51H68N10O11S2
Molecular Weight : 1061.28
(4R,7S,10S,13R,16S,19R)-19-((R)-2-Amino-3-phenylpropanamido)-10-(4-aminobutyl)-16-benzyl-N-((2R,3R)-1,3-dihydroxybutan-2-yl)-7-((R)-1-hydroxyethyl)-13-((1-(hydroxymethyl)-1H-indol-3-yl)methyl)-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentaazacycloicosane-4-carboxamide
(4R,7S,10S,13R,16S,19R)-19-((R)-2-Amino-3-phenylpropanamido)-10-(4-aminobutyl)-16-benzyl-N-((2R,3R)-1,3-dihydroxybutan-2-yl)-7-((R)-1-hydroxyethyl)-13-((1-(hydroxymethyl)-1H-indol-3-yl)methyl)-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentaazacycloicosane-4-carboxamide
Catalogue No.:PA PEP 000340
CAS :
1546983-16-7
Molecular Formula : C50H68N10O11S2
Molecular Weight : 1049.27
(R)-N-((4R,7S,10S,13R,16S,19R)-13-((1H-Indol-3-yl)methyl)-10-(4-aminobutyl)-16-benzyl-7-((R)-1-hydroxyethyl)-4-(hydroxymethyl)-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentaazacycloicosan-19-yl)-2-amino-3-phenylpropanamide
(R)-N-((4R,7S,10S,13R,16S,19R)-13-((1H-Indol-3-yl)methyl)-10-(4-aminobutyl)-16-benzyl-7-((R)-1-hydroxyethyl)-4-(hydroxymethyl)-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentaazacycloicosan-19-yl)-2-amino-3-phenylpropanamide
Catalogue No.:PA PEP 000341
CAS :
1546983-18-9
Molecular Formula : C45H59N9O8S2
Molecular Weight : 918.14
(5R,8S,11S,14R,17S,20R)-14-((1H-Indol-3-yl)methyl)-20-((R)-2-amino-3-phenylpropanamido)-11-(4-aminobutyl)-17-benzyl-N-((2R,3R)-1,3-dihydroxybutan-2-yl)-8-((R)-1-hydroxyethyl)-7,10,13,16,19-pentaoxo-1,2,3-trithia-6,9,12,15,18-pentaazacyclohenicosane-5-carboxamide
(5R,8S,11S,14R,17S,20R)-14-((1H-Indol-3-yl)methyl)-20-((R)-2-amino-3-phenylpropanamido)-11-(4-aminobutyl)-17-benzyl-N-((2R,3R)-1,3-dihydroxybutan-2-yl)-8-((R)-1-hydroxyethyl)-7,10,13,16,19-pentaoxo-1,2,3-trithia-6,9,12,15,18-pentaazacyclohenicosane-5-carboxamide
Catalogue No.:PA PEP 000343
CAS :
NA
Molecular Formula : C49H66N10O10S3
Molecular Weight : 1051.31
(R)-13-(tert-Butoxycarbonyl)-34,34-dimethyl-10,15,32-trioxo-3,6,33-trioxa-9,14-diazapentatriacontanoic Acid
(R)-13-(tert-Butoxycarbonyl)-34,34-dimethyl-10,15,32-trioxo-3,6,33-trioxa-9,14-diazapentatriacontanoic Acid
Catalogue No.:PA PEP 000377
CAS :
NA
Molecular Formula : C37H68N2O10
Molecular Weight : 700.96
(R)-22-(tert-Butoxycarbonyl)-43,43-dimethyl-10,19,24,41-tetraoxo-3,6,12,15,42-pentaoxa-9,18,23-triazatetratetracontanoic Acid
(R)-22-(tert-Butoxycarbonyl)-43,43-dimethyl-10,19,24,41-tetraoxo-3,6,12,15,42-pentaoxa-9,18,23-triazatetratetracontanoic Acid
Catalogue No.:PA PEP 000378
CAS :
NA
Molecular Formula : C43H79N3O13
Molecular Weight : 846.11
tert-Butyl (R)-1-amino-22-(tert-butoxycarbonyl)-1,10,19,24-tetraoxo-3,6,12,15-tetraoxa-9,18,23-triazahentetracontan-41-oate
tert-Butyl (R)-1-amino-22-(tert-butoxycarbonyl)-1,10,19,24-tetraoxo-3,6,12,15-tetraoxa-9,18,23-triazahentetracontan-41-oate
Catalogue No.:PA PEP 000379
CAS :
NA
Molecular Formula : C43H80N4O12
Molecular Weight : 845.13
(R)-31-(tert-Butoxycarbonyl)-52,52-dimethyl-10,19,28,33,50-pentaoxo-3,6,12,15,21,24,51-heptaoxa-9,18,27,32-tetraazatripentacontanoic Acid
(R)-31-(tert-Butoxycarbonyl)-52,52-dimethyl-10,19,28,33,50-pentaoxo-3,6,12,15,21,24,51-heptaoxa-9,18,27,32-tetraazatripentacontanoic Acid
Catalogue No.:PA PEP 000380
CAS :
NA
Molecular Formula : C49H90N4O16
Molecular Weight : 991.27
(S)-(2-(2-(((Benzyloxy)carbonyl)amino)-2-methylpropanamido)-5-(tert-butoxy)-5-oxopentanoyl)glycine
(S)-(2-(2-(((Benzyloxy)carbonyl)amino)-2-methylpropanamido)-5-(tert-butoxy)-5-oxopentanoyl)glycine
Catalogue No.:PA PEP 000382
CAS :
NA
Molecular Formula : C23H33N3O8
Molecular Weight : 479.53
Methyl (6S,12S)-12-(3-(tert-butoxy)-3-oxopropyl)-2,2,9,9-tetramethyl-4,7,10,13-tetraoxo-6-((1-trityl-1H-imidazol-4-yl)methyl)-3-oxa-5,8,11,14-tetraazahexadecan-16-oate
Methyl (6S,12S)-12-(3-(tert-butoxy)-3-oxopropyl)-2,2,9,9-tetramethyl-4,7,10,13-tetraoxo-6-((1-trityl-1H-imidazol-4-yl)methyl)-3-oxa-5,8,11,14-tetraazahexadecan-16-oate
Catalogue No.:PA PEP 000384
CAS :
NA
Molecular Formula : C46H58N6O9
Molecular Weight : 839
(6S,12S)-12-(2-Carboxyethyl)-2,2,9,9-tetramethyl-4,7,10,13-tetraoxo-6-((1-trityl-1H-imidazol-4-yl)methyl)-3-oxa-5,8,11,14-tetraazahexadecan-16-oic Acid
(6S,12S)-12-(2-Carboxyethyl)-2,2,9,9-tetramethyl-4,7,10,13-tetraoxo-6-((1-trityl-1H-imidazol-4-yl)methyl)-3-oxa-5,8,11,14-tetraazahexadecan-16-oic Acid
Catalogue No.:PA PEP 000385
CAS :
NA
Molecular Formula : C41H48N6O9
Molecular Weight : 768.87
((S)-5-(tert-Butoxy)-2-(2-((S)-2-((tert-butoxycarbonyl)amino)-3-(1H-imidazol-4-yl)propanamido)-2-methylpropanamido)-5-oxopentanoyl)glycine
((S)-5-(tert-Butoxy)-2-(2-((S)-2-((tert-butoxycarbonyl)amino)-3-(1H-imidazol-4-yl)propanamido)-2-methylpropanamido)-5-oxopentanoyl)glycine
Catalogue No.:PA PEP 000386
CAS :
2377584-78-4
Molecular Formula : C26H42N6O9
Molecular Weight : 582.66
((R)-5-(tert-Butoxy)-2-(2-((S)-2-((tert-butoxycarbonyl)amino)-3-(1-trityl-1H-imidazol-4-yl)propanamido)-2-methylpropanamido)-5-oxopentanoyl)glycine
((R)-5-(tert-Butoxy)-2-(2-((S)-2-((tert-butoxycarbonyl)amino)-3-(1-trityl-1H-imidazol-4-yl)propanamido)-2-methylpropanamido)-5-oxopentanoyl)glycine
Catalogue No.:PA PEP 000387
CAS :
NA
Molecular Formula : C45H56N6O9
Molecular Weight : 824.98
((S)-5-(tert-Butoxy)-2-(2-(2-((S)-2-((tert-butoxycarbonyl)amino)-3-(1-trityl-1H-imidazol-4-yl)propanamido)-2-methylpropanamido)-2-methylpropanamido)-5-oxopentanoyl)glycine
((S)-5-(tert-Butoxy)-2-(2-(2-((S)-2-((tert-butoxycarbonyl)amino)-3-(1-trityl-1H-imidazol-4-yl)propanamido)-2-methylpropanamido)-2-methylpropanamido)-5-oxopentanoyl)glycine
Catalogue No.:PA PEP 000388
CAS :
NA
Molecular Formula : C49H63N7O10
Molecular Weight : 910.08
(S)-3-((S)-2-((S)-2-Amino-3-methylbutanamido)-3-(1H-imidazol-5-yl)propanamido)-4-(((S)-1-carboxy-2-phenylethyl)amino)-4-oxobutanoic Acid
(S)-3-((S)-2-((S)-2-Amino-3-methylbutanamido)-3-(1H-imidazol-5-yl)propanamido)-4-(((S)-1-carboxy-2-phenylethyl)amino)-4-oxobutanoic Acid
Catalogue No.:PA PEP 000412
CAS :
NA
Molecular Formula : C24H32N6O7
Molecular Weight : 516.56
