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,3aS,7aR)-2-((R)-2-((((R)-2-(2-((2S,4R)-1-(L-Arginyl-L-arginyl-L-prolyl)-4-hydroxypyrrolidine-2-carboxamido)acetamido)-3-(thiophen-2-yl)propanoyl)carbamoyl)-L-seryl)-1,2,3,4-tetrahydroisoquinoline-3-carbonyl)octahydro-1H-isoindole-1-carbonyl)-L-arginine
((1S,3aS,7aR)-2-((R)-2-((((R)-2-(2-((2S,4R)-1-(L-Arginyl-L-arginyl-L-prolyl)-4-hydroxypyrrolidine-2-carboxamido)acetamido)-3-(thiophen-2-yl)propanoyl)carbamoyl)-L-seryl)-1,2,3,4-tetrahydroisoquinoline-3-carbonyl)octahydro-1H-isoindole-1-carbonyl)-L-arginine
Catalogue No.:PA PEP 000002
CAS :
NA
Molecular Formula : C60H90N20O14S
Molecular Weight : 1347.57
(3S,6S,9S,12R,15S,18S,21S,24S,30S,33S)-15,30-Diethyl-33-((1R,2R,E)-1-hydroxy-2-methylhex-4-en-1-yl)-6,9,18,24-tetraisobutyl-3,21-diisopropyl-1,4,7,10,12,19,25,28-octamethyl-1,4,7,10,13,16,19,22,25,28,31-undecaazacyclotritriacontan-2,5,8,11,14,17,20,23,26,29,32-undecaone
(3S,6S,9S,12R,15S,18S,21S,24S,30S,33S)-15,30-Diethyl-33-((1R,2R,E)-1-hydroxy-2-methylhex-4-en-1-yl)-6,9,18,24-tetraisobutyl-3,21-diisopropyl-1,4,7,10,12,19,25,28-octamethyl-1,4,7,10,13,16,19,22,25,28,31-undecaazacyclotritriacontan-2,5,8,11,14,17,20,23,26,29,32-undecaone
Catalogue No.:PA PEP 000048
CAS :
108027-46-9
Molecular Formula : C63H113N11O12
Molecular Weight : 1216.66
(4S,5R)-5-((R,E)-Hex-4-en-2-yl)-3-methyl-2-oxo-N-((4S,7S,10R,13S,16S,19S,22S,28S)-4,7,16,22-tetraisobutyl-19-isopropyl-5,8,10,13,17,23,26-heptamethyl-3,6,9,12,15,18,21,24,27-nonaoxo-2,5,8,11,14,17,20,23,26-nonaazatriacontan-28-yl)oxazolidine-4-carboxamide
(4S,5R)-5-((R,E)-Hex-4-en-2-yl)-3-methyl-2-oxo-N-((4S,7S,10R,13S,16S,19S,22S,28S)-4,7,16,22-tetraisobutyl-19-isopropyl-5,8,10,13,17,23,26-heptamethyl-3,6,9,12,15,18,21,24,27-nonaoxo-2,5,8,11,14,17,20,23,26-nonaazatriacontan-28-yl)oxazolidine-4-carboxamide
Catalogue No.:PA PEP 000055
CAS :
1907654-63-0
Molecular Formula : C58H103N11O12
Molecular Weight : 1146.53
Cyclosporin - Impurity B
1,11-Anhydro[L-alanyl-D-alanyl-N-methyl-L-leucyl-N-methyl-L-leucyl-N-methyl-L-valyl-N-methyl-L-[(1S,2R)-1-hydroxy-2-methylhexyl]glycl-L-2-aminobutanoyl-N-methylglycyl-N-methyl-L-leucylL-valyl-N-methyl-L-leucine] ([6-L-[(1S,2R)-1-hydroxy-2-methylhexyl]glycine]ciclosporin A)
Catalogue No.:PA PEP 000070
CAS :
59865-15-5
Molecular Formula : C62H113N11O12
Molecular Weight : 1204.63
(3S,6S,9S,12R,15S,18S,21S,24S,27R,30S,33S)-27-((2-(Dimethylamino)ethyl)thio)-30-ethyl-33-((1R,2R,E)-1-hydroxy-2-methylhex-4-en-1-yl)-24-(2-hydroxy-2-methylpropyl)-6,9,18-triisobutyl-3,21-diisopropyl-1,4,7,10,12,15,19,25,28-nonamethyl-1,4,7,10,13,16,19,22,25,28,31-undecaazacyclotritriacontan-2,5,8,11,14,17,20,23,26,29,32-undecaone
(3S,6S,9S,12R,15S,18S,21S,24S,27R,30S,33S)-27-((2-(Dimethylamino)ethyl)thio)-30-ethyl-33-((1R,2R,E)-1-hydroxy-2-methylhex-4-en-1-yl)-24-(2-hydroxy-2-methylpropyl)-6,9,18-triisobutyl-3,21-diisopropyl-1,4,7,10,12,15,19,25,28-nonamethyl-1,4,7,10,13,16,19,22,25,28,31-undecaazacyclotritriacontan-2,5,8,11,14,17,20,23,26,29,32-undecaone
Catalogue No.:PA PEP 000083
CAS :
210759-10-7
Molecular Formula : C66H120N12O13S
Molecular Weight : 1321.82
2-((3R,11R,17S,20S,25aS)-20-((1H-Indol-3-yl)methyl)-3-carbamoyl-11-(4-guanidinobutyl)-1,9,12,15,18,21-hexaoxodocosahydro-7H-pyrrolo[2,1-g][1,2]dithia[5,8,11,14,17,20]hexaazacyclotricosin-17-yl)acetic Acid
2-((3R,11R,17S,20S,25aS)-20-((1H-Indol-3-yl)methyl)-3-carbamoyl-11-(4-guanidinobutyl)-1,9,12,15,18,21-hexaoxodocosahydro-7H-pyrrolo[2,1-g][1,2]dithia[5,8,11,14,17,20]hexaazacyclotricosin-17-yl)acetic Acid
Catalogue No.:PA PEP 000105
CAS :
NA
Molecular Formula : C35H49N11O9S2
Molecular Weight : 831.97
(2S)-5-[[amino-[(2,2,4,6,7-pentamethyl-3H-1-benzofuran-5-yl)sulfonylamino]methylidene]amino]-2-[[(2R)-4-[(2-methylpropan-2-yl)oxyamino]-2-(naphthalen-2-ylmethyl)-4-oxobutanoyl]amino]pentanoic acid
(2S)-5-[[amino-[(2,2,4,6,7-pentamethyl-3H-1-benzofuran-5-yl)sulfonylamino]methylidene]amino]-2-[[(2R)-4-[(2-methylpropan-2-yl)oxyamino]-2-(naphthalen-2-ylmethyl)-4-oxobutanoyl]amino]pentanoic acid
Catalogue No.:PA PEP 000111
CAS :
1093740-20-5
Molecular Formula : C38H51N5O8S
Molecular Weight : 737.91
