Pharmaceutical analytical standards

APIs, pharmacopoeial impurities, metabolites, nitrosamines and labelled standards.

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ImpurityLevels of characterisation

Cat. No.: P-D182-016
CAS: 115540-28-8
Formula: C₄₀H₇₂O₂Si₂
Family: Doxercalciferol
Synonyms: [(1R,3E,5R)-3-[(2E)-2-[(1R,3aS,7aR)-1-[(E,2R,5R)-5,6-Dimethylhept-3-en-2-yl]-7a-methyl-2,3,3a,5,6,7-hexahydro-1H-inden-4-ylidene]ethylidene]-5-[tert-butyl(dimethyl)silyl]oxy-2-methylidenecyclohexyl]oxy-tert-butyl-dimethylsilane

ImpurityLevels of characterisation

ImpurityLevels of characterisation

Cat. No.: P-D183-015
CAS: 2095554-12-2
Formula: C₁₁H₁₆N₄O₅
Family: Doxofylline
Synonyms: 3-(1,3-Dioxolan-2-ylmethyl)-5-[methyl(methylcarbamoyl)amino]imidazole-4-carboxylic acid

ImpurityLevels of characterisation

Cat. No.: P-D183-016
CAS: 2095485-27-9
Formula: C₁₁H₁₂N₄O₄
Family: Doxofylline
Synonyms: 5,7-Dimethyl-13,15-dioxa-3,5,7,10-tetrazatetracyclo[10.2.1.02,10.04,9]pentadeca-2,4(9)-diene-6,8-dione

ImpurityLevels of characterisation

Cat. No.: P-D183-019
CAS: 7029-96-1
Formula: C₁₁H₁₄N₄O₄
Family: Doxofylline
Synonyms: Ethyl (1,3-dimethyl-2,6-dioxo-1,2,3,6-tetrahydro-7H-purin-7-yl)acetate, ethyl 2-(1,3-dimethyl-2,6-dioxopurin-7-yl)acetate

ImpurityLevels of characterisation

Cat. No.: P-D183-005
CAS: 1429636-72-5
Formula: C₁₁H₁₆N₄O₄
Family: Doxofylline
Synonyms: 7-(2,2-Dimethoxyethyl)-1,3-dimethyl-1H-purine-2,6(3H,7H)-dione, 7-(2,2-dimethoxyethyl)-1,3-dimethylpurine-2,6-dione

ImpurityLevels of characterisation

Cat. No.: P-D183-006
CAS: 1021-65-4
Formula: C₁₁H₁₆N₄O₂
Family: Doxofylline
Synonyms: 7-Butyl-3,7-dihydro-1,3-dimethyl-1H-purine-2,6-dione, 7-butyl-1,3-dimethylpurine-2,6-dione

ImpurityLevels of characterisation

Cat. No.: P-D183-007
CAS: 1174289-18-9
Formula: C₁₁H₁₄N₄O₄
Family: Doxofylline
Synonyms: 9-((1,3-Dioxolan-2-yl)methyl)-1,3-dimethyl-1H-purine-2,6(3H,9H)-dione, 9-(1,3-dioxolan-2-ylmethyl)-1,3-dimethylpurine-2,6-dione

ImpurityLevels of characterisation

ImpurityLevels of characterisation

Cat. No.: P-D183-009
CAS: 1429636-74-7
Formula: C₁₀H₁₆N₄O₃
Family: Doxofylline
Synonyms: 3-(1,3-Dioxolan-2-ylmethyl)-N-methyl-5-(methylamino)imidazole-4-carboxamide

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