biotin and its Impurities
Biotin is widely used throughout the biotechnology industry to conjugate proteins for biochemical assays. Biotin, also called vitamin H or vitamin B7, is a water-soluble B vitamin.. Reference standards of Biotin API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below
N-(2-(2-(2-Azidoethoxy)ethoxy)ethyl)-5-(2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanamide
N-(2-(2-(2-Azidoethoxy)ethoxy)ethyl)-5-(2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanamide
Catalogue No.:PA 02 0751074
CAS :
1910803-72-3
Molecular Formula : C16H28N6O4S
Molecular Weight : 400.5
6-((4R,5S)-5-methyl-2-oxoimidazolidin-4-yl)-N-(3,6,9,12-tetraoxapentadec-14-yn-1-yl)hexanamide
6-((4R,5S)-5-methyl-2-oxoimidazolidin-4-yl)-N-(3,6,9,12-tetraoxapentadec-14-yn-1-yl)hexanamide
Catalogue No.:PA 02 0751077
CAS :
1951424-89-7
Molecular Formula : C21H37N3O6
Molecular Weight : 427.54
Rel 16-(5-((3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanoyl)-4,7,10,13,19,22,25,28-octaoxa-16-azahentriacontanedioic acid
Rel 16-(5-((3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanoyl)-4,7,10,13,19,22,25,28-octaoxa-16-azahentriacontanedioic acid
Catalogue No.:PA 02 0751078
CAS :
1964503-35-2
Molecular Formula : C32H57N3O14S
Molecular Weight : 739.88
Rel 3,3'-((2-(5-((3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanamido)propane-1,3-diyl)bis(oxy))dipropionic acid
Rel 3,3'-((2-(5-((3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanamido)propane-1,3-diyl)bis(oxy))dipropionic acid
Catalogue No.:PA 02 0751086
CAS :
2086689-02-1
Molecular Formula : C19H31N3O8S
Molecular Weight : 461.53
rel-Methyl 27-azido-16-[5-[(3aR,4R,6aS)-hexahydro-2-oxo-1H-thieno[3,4-d]imidazol-4-yl]-1-oxopentyl]-4,7,10,13,19,22,25-heptaoxa-16-azaheptacosanoate
rel-Methyl 27-azido-16-[5-[(3aR,4R,6aS)-hexahydro-2-oxo-1H-thieno[3,4-d]imidazol-4-yl]-1-oxopentyl]-4,7,10,13,19,22,25-heptaoxa-16-azaheptacosanoate
Catalogue No.:PA 02 0751089
CAS :
2100306-76-9
Molecular Formula : C30H54N6O11S
Molecular Weight : 706.85
N-(2-Methyl-2-(((pent-4-yn-1-yloxy)diphenylsilyl)oxy)propyl)-1-(5-((3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanamido)-3,6,9,12-tetraoxapentadecan-15-amide
N-(2-Methyl-2-(((pent-4-yn-1-yloxy)diphenylsilyl)oxy)propyl)-1-(5-((3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanamido)-3,6,9,12-tetraoxapentadecan-15-amide
Catalogue No.:PA 02 0751109
CAS :
2241685-22-1
Molecular Formula : C42H62N4O9SSi
Molecular Weight : 827.12
N-(35-Azido-3,6,9,12,15,18,21,24,27,30,33-undecaoxapentatriacontyl)-5-((3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanamide
N-(35-Azido-3,6,9,12,15,18,21,24,27,30,33-undecaoxapentatriacontyl)-5-((3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanamide
Catalogue No.:PA 02 0751111
CAS :
2276672-04-7
Molecular Formula : C34H64N6O13S
Molecular Weight : 796.98
N-(14-Amino-3,6,9,12-tetraoxatetradecyl)-6-((4R,5S)-5-methyl-2-oxoimidazolidin-4-yl)hexanamide
N-(14-Amino-3,6,9,12-tetraoxatetradecyl)-6-((4R,5S)-5-methyl-2-oxoimidazolidin-4-yl)hexanamide
Catalogue No.:PA 02 0751115
CAS :
2306109-91-9
Molecular Formula : C20H40N4O6
Molecular Weight : 432.56
N-(1-Amino-1-thioxo-5,8,11,14,17,20,23-heptaoxa-2-azapentacosan-25-yl)-5-((3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanamide
N-(1-Amino-1-thioxo-5,8,11,14,17,20,23-heptaoxa-2-azapentacosan-25-yl)-5-((3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanamide
Catalogue No.:PA 02 0751112
CAS :
2353409-59-1
Molecular Formula : C27H51N5O9S2
Molecular Weight : 653.85
Di-tert-butyl 16-(6-((4R,5S)-5-methyl-2-oxoimidazolidin-4-yl)hexanoyl)-4,7,10,13,19,22,25,28-octaoxa-16-azahentriacontanedioate
Di-tert-butyl 16-(6-((4R,5S)-5-methyl-2-oxoimidazolidin-4-yl)hexanoyl)-4,7,10,13,19,22,25,28-octaoxa-16-azahentriacontanedioate
Catalogue No.:PA 02 0751117
CAS :
2353409-60-4
Molecular Formula : C40H75N3O14
Molecular Weight : 822.05
Bis(2,5-dioxopyrrolidin-1-yl) 16-(6-((4R,5S)-5-methyl-2-oxoimidazolidin-4-yl)hexanoyl)-4,7,10,13,19,22,25,28-octaoxa-16-azahentriacontanedioate
Bis(2,5-dioxopyrrolidin-1-yl) 16-(6-((4R,5S)-5-methyl-2-oxoimidazolidin-4-yl)hexanoyl)-4,7,10,13,19,22,25,28-octaoxa-16-azahentriacontanedioate
Catalogue No.:PA 02 0751116
CAS :
2353409-61-5
Molecular Formula : C40H65N5O18
Molecular Weight : 903.98
4,7,10,13,19,22,25,28-Octaoxa-16,31-diazapentatriacontanoic acid, 35-(11,12-didehydrodibenz[b,f]azocin-5(6H)-yl)-16-[5-[(3aS,4S,6aR)-hexahydro-2-oxo-1H-thieno[3,4-d]imidazol-4-yl]-1-oxopentyl]-32,35-dioxo-, 2,5-dioxo-1-pyrrolidinyl ester
4,7,10,13,19,22,25,28-Octaoxa-16,31-diazapentatriacontanoic acid, 35-(11,12-didehydrodibenz[b,f]azocin-5(6H)-yl)-16-[5-[(3aS,4S,6aR)-hexahydro-2-oxo-1H-thieno[3,4-d]imidazol-4-yl]-1-oxopentyl]-32,35-dioxo-, 2,5-dioxo-1-pyrrolidinyl ester
Catalogue No.:PA 02 0751113
CAS :
2353409-72-8
Molecular Formula : C54H74N6O16S
Molecular Weight : 1095.27
N-(4-(3,5-Dioxohexyl)phenyl)-1-(5-((3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanamido)-3,6,9,12-tetraoxapentadecan-15-amide
N-(4-(3,5-Dioxohexyl)phenyl)-1-(5-((3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanamido)-3,6,9,12-tetraoxapentadecan-15-amide
Catalogue No.:PA 02 0751114
CAS :
2353409-85-3
Molecular Formula : C33H50N4O9S
Molecular Weight : 678.84
N-(24-Azido-12,20-dioxo-3,6,9-trioxa-16,17-dithia-13,21-diazatetracosyl)-5-((3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanamide
N-(24-Azido-12,20-dioxo-3,6,9-trioxa-16,17-dithia-13,21-diazatetracosyl)-5-((3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanamide
Catalogue No.:PA 02 0751124
CAS :
2866429-93-6
Molecular Formula : C27H48N8O7S3
Molecular Weight : 692.91
N-(2-(2-(2-(3-(2,5-Dioxo-2,5-dihydro-1H-pyrrol-1-yl)propanamido)ethoxy)ethoxy)ethyl)-5-((3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanamide
N-(2-(2-(2-(3-(2,5-Dioxo-2,5-dihydro-1H-pyrrol-1-yl)propanamido)ethoxy)ethoxy)ethyl)-5-((3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanamide
Catalogue No.:PA 02 0751128
CAS :
305372-39-8
Molecular Formula : C23H35N5O7S
Molecular Weight : 525.62
2,5-Dioxopyrrolidin-1-yl 3-(2-(2-(5-(2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanamido)ethoxy)ethoxy)propanoate
2,5-Dioxopyrrolidin-1-yl 3-(2-(2-(5-(2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanamido)ethoxy)ethoxy)propanoate
Catalogue No.:PA 02 0751129
CAS :
365441-71-0
Molecular Formula : C21H32N4O8S
Molecular Weight : 500.57
