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.
(1S,3aR,6aS)-Hexahydro-cyclopenta[c]pyrrole-1,2(1H)-dicarboxylic Acid 2-(tert-Butyl) Ester 1-methyl ester
(1S,3aR,6aS)-Hexahydro-cyclopenta[c]pyrrole-1,2(1H)-dicarboxylic Acid 2-(tert-Butyl) Ester 1-methyl ester
Catalogue No.:PA PEP 000714
CAS :
1042330-85-7
Molecular Formula : C14H23NO4
Molecular Weight : 269.34
34-O-[2-(Acetylamino)-2-deoxy-β-D-glucopyranosyl]-22,31-dichloro-7-demethyl-64-O-demethyl-19-deoxy-56-O-[2-deoxy-2-[(1-oxooctyl)amino]-β-D-glucopyranosyl]-42-O-α-D-mannopyranosylristomycin A aglycone;
34-O-[2-(Acetylamino)-2-deoxy-β-D-glucopyranosyl]-22,31-dichloro-7-demethyl-64-O-demethyl-19-deoxy-56-O-[2-deoxy-2-[(1-oxooctyl)amino]-β-D-glucopyranosyl]-42-O-α-D-mannopyranosylristomycin A aglycone;
Catalogue No.:PA PEP 000741
CAS :
1620753-26-5
Molecular Formula : C86H93Cl2N9O33
Molecular Weight : 1851.62
((3R,6S,9S,12S,15S)-6-(2-Amino-2-oxoethyl)-9-(3-amino-3-oxopropyl)-12-((S)-sec-butyl)-15-(4-methoxybenzyl)-5,8,11,14,17-pentaoxo-1-thia-4,7,10,13,16-pentaazacycloicosane-3-carbonyl)-L-prolyl-L-leucylglycine
((3R,6S,9S,12S,15S)-6-(2-Amino-2-oxoethyl)-9-(3-amino-3-oxopropyl)-12-((S)-sec-butyl)-15-(4-methoxybenzyl)-5,8,11,14,17-pentaoxo-1-thia-4,7,10,13,16-pentaazacycloicosane-3-carbonyl)-L-prolyl-L-leucylglycine
Catalogue No.:PA PEP 000749
CAS :
1352167-71-5
Molecular Formula : C45H68N10O13S
Molecular Weight : 989.16
2-((3R,6S,9S,12S,15S)-3-((S)-2-(((S)-1-((2-Amino-2-oxoethyl)amino)-4-methyl-1-oxopentan-2-yl)carbamoyl)pyrrolidine-1-carbonyl)-9-(3-amino-3-oxopropyl)-12-((S)-sec-butyl)-15-(4-methoxybenzyl)-5,8,11,14,17-pentaoxo-1-thia-4,7,10,13,16-pentaazacycloicosan-6-yl)acetic Acid
2-((3R,6S,9S,12S,15S)-3-((S)-2-(((S)-1-((2-Amino-2-oxoethyl)amino)-4-methyl-1-oxopentan-2-yl)carbamoyl)pyrrolidine-1-carbonyl)-9-(3-amino-3-oxopropyl)-12-((S)-sec-butyl)-15-(4-methoxybenzyl)-5,8,11,14,17-pentaoxo-1-thia-4,7,10,13,16-pentaazacycloicosan-6-yl)acetic Acid
Catalogue No.:PA PEP 000750
CAS :
NA
Molecular Formula : C45H68N10O13S
Molecular Weight : 989.16
(S)-1-((3S,6S,9S,12S,15S)-6-(2-Amino-2-oxoethyl)-9-(3-amino-3-oxopropyl)-12-((S)-sec-butyl)-15-(4-methoxybenzyl)-5,8,11,14,17-pentaoxo-1-thia-4,7,10,13,16-pentaazacycloicosane-3-carbonyl)-N-((S)-1-((2-amino-2-oxoethyl)amino)-4-methyl-1-oxopentan-2-yl)pyrrolidine-2-carboxamide
(S)-1-((3S,6S,9S,12S,15S)-6-(2-Amino-2-oxoethyl)-9-(3-amino-3-oxopropyl)-12-((S)-sec-butyl)-15-(4-methoxybenzyl)-5,8,11,14,17-pentaoxo-1-thia-4,7,10,13,16-pentaazacycloicosane-3-carbonyl)-N-((S)-1-((2-amino-2-oxoethyl)amino)-4-methyl-1-oxopentan-2-yl)pyrrolidine-2-carboxamide
Catalogue No.:PA PEP 000753
CAS :
1515871-10-9
Molecular Formula : C45H69N11O12S
Molecular Weight : 988.17
Disulfide Bridge [Cys(1), Cys(7)] H-Cys-Ser-Ala(CN)-Leu-Ser-Thr-Cys-Val-Leu-Gly-Lys-Leu-Ser-Gln-Glu-Leu-His-Lys-Leu-Gln-Thr-Tyr-Pro-Arg-Thr-Asn-Thr-Gly-Ser-Gly-Thr-Pro-NH2
Disulfide Bridge [Cys(1), Cys(7)] H-Cys-Ser-Ala(CN)-Leu-Ser-Thr-Cys-Val-Leu-Gly-Lys-Leu-Ser-Gln-Glu-Leu-His-Lys-Leu-Gln-Thr-Tyr-Pro-Arg-Thr-Asn-Thr-Gly-Ser-Gly-Thr-Pro-NH2
Catalogue No.:PA PEP 000761
CAS :
NA
Molecular Formula : C145H238N44O47S2
Molecular Weight : 3413.88
(6S,9R,E)-6-(2,3-Difluorophenyl)-5-(hydroxyimino)-6,7,8,9-tetrahydro-5H-cyclohepta[b]pyridin-9-yl 4-(2-oxo-2,3-dihydro-1H-imidazo[4,5-b]pyridin-1-yl)piperidine-1-carboxylate
(6S,9R,E)-6-(2,3-Difluorophenyl)-5-(hydroxyimino)-6,7,8,9-tetrahydro-5H-cyclohepta[b]pyridin-9-yl 4-(2-oxo-2,3-dihydro-1H-imidazo[4,5-b]pyridin-1-yl)piperidine-1-carboxylate
Catalogue No.:PA PEP 000762
CAS :
1289023-79-5
Molecular Formula : C28H26F2N6O4
Molecular Weight : 548.55
(6S,9R,Z)-6-(2,3-Difluorophenyl)-5-(hydroxyimino)-6,7,8,9-tetrahydro-5H-cyclohepta[b]pyridin-9-yl 4-(2-oxo-2,3-dihydro-1H-imidazo[4,5-b]pyridin-1-yl)piperidine-1-carboxylate
(6S,9R,Z)-6-(2,3-Difluorophenyl)-5-(hydroxyimino)-6,7,8,9-tetrahydro-5H-cyclohepta[b]pyridin-9-yl 4-(2-oxo-2,3-dihydro-1H-imidazo[4,5-b]pyridin-1-yl)piperidine-1-carboxylate
Catalogue No.:PA PEP 000763
CAS :
1289023-78-4
Molecular Formula : C28H26F2N6O4
Molecular Weight : 548.55
3-((3R,6S,9S,12S,15S)-6-(2-Amino-2-oxoethyl)-3-((S)-2-(((S)-1-((2-amino-2-oxoethyl)amino)-4-methyl-1-oxopentan-2-yl)carbamoyl)pyrrolidine-1-carbonyl)-12-((S)-sec-butyl)-15-(4-methoxybenzyl)-5,8,11,14,17-pentaoxo-1-thia-4,7,10,13,16-pentaazacycloicosan-9-yl)propanoic Acid
3-((3R,6S,9S,12S,15S)-6-(2-Amino-2-oxoethyl)-3-((S)-2-(((S)-1-((2-amino-2-oxoethyl)amino)-4-methyl-1-oxopentan-2-yl)carbamoyl)pyrrolidine-1-carbonyl)-12-((S)-sec-butyl)-15-(4-methoxybenzyl)-5,8,11,14,17-pentaoxo-1-thia-4,7,10,13,16-pentaazacycloicosan-9-yl)propanoic Acid
Catalogue No.:PA PEP 000771
CAS :
69228-04-2
Molecular Formula : C45H68N10O13S
Molecular Weight : 989.16
N-Acetyl-S-(2-carboxypropyl)-L-cysteine-d3 Dicyclohexylammonium Salt (Mixture of Diastereomers)
N-Acetyl-S-(2-carboxypropyl)-L-cysteine-d3 Dicyclohexylammonium Salt (Mixture of Diastereomers)
Catalogue No.:PA PEP 000784
CAS :
NA
Molecular Formula : C21H35D3N2O5S
Molecular Weight : 433.62
