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Apixaban USP Related Compound E

Pharmacopoeial impurityLevels of characterisation

Cat. No.: P-A172-117
CAS: 1074365-84-6
Formula: C₂₆H₂₆N₄O₅
Family: Apixaban
Synonyms: Methyl 1-(4-methoxyphenyl)-7-oxo-6-[4-(2-oxopiperidin-1-yl)phenyl]-4,5-dihydropyrazolo[5,4-c]pyridine-3-carboxylate, Apixaban Methyl Ester Impurity

Apixaban USP Related Compound F

Pharmacopoeial impurityLevels of characterisation

Cat. No.: P-A172-048
CAS: 536759-91-8
Formula: C₂₂H₂₀N₄O₆
Family: Apixaban
Synonyms: Apixaban Related Compound F, Apixaban Impurity 16

Apixaban USP Related Compound G

Pharmacopoeial impurityLevels of characterisation

Cat. No.: P-A172-003
CAS: 881386-12-5
Formula: C₂₇H₂₉BrN₄O₅
Family: Apixaban
Synonyms: Apixaban 5-Bromopentanamide Impurity, Apixaban Related Compound G

Apixaban USP Related Compound H

Pharmacopoeial impurityLevels of characterisation

Cat. No.: P-A172-004
CAS: 1421823-20-2
Formula: C₂₇H₂₉ClN₄O₅
Family: Apixaban
Synonyms: Chloropentamidophenyl Ethyl Apixaban Ester, Apixaban Related Compound H

Sildenafil EP Impurity A

Pharmacopoeial impurityLevels of characterisation

Cat. No.: P-S041-004
CAS: 1391053-95-4
Formula: C₂₃H₃₂N₆O₄S
Family: Sildenafil
Synonyms: Isobutyl Sildenafil, Despropyl isobutyl sildenafil

Sildenafil EP Impurity B

Pharmacopoeial impurityLevels of characterisation

Cat. No.: P-S041-005
CAS: 1094598-75-0
Formula: C₂₂H₃₀N₆O₅S
Family: Sildenafil
Synonyms: Sildenafil N-Oxide, Sildenafil B

Sildenafil EP Impurity C

Pharmacopoeial impurityLevels of characterisation

Cat. No.: P-S041-006
CAS: 139755-91-2
Formula: C₂₀H₂₆N₆O₄S
Family: Sildenafil
Synonyms: O-Desethyl Sildenafil, Sildenafil Impurity C

Sildenafil EP Impurity D

Pharmacopoeial impurityLevels of characterisation

Cat. No.: P-S041-007
CAS: 1357931-55-5
Formula: C₁₇H₂₀N₄O₅S
Family: Sildenafil
Synonyms: Des(methylpiperazinyl) sildenafil acid, Demethylpiperazinyl Sildenafil Sulfonic Acid

Sildenafil EP Impurity F

Pharmacopoeial impurityLevels of characterisation

Cat. No.: P-S041-009
CAS: 139755-82-1
Formula: C₂₁H₂₈N₆O₄S
Family: Sildenafil
Synonyms: N-Desmethyl Sildenafil, Desmethylsildenafil

Sildenafil EP Impurity G

Pharmacopoeial impurityLevels of characterisation

Cat. No.: P-S041-010
CAS: 1346602-67-2
Formula: C₃₈H₄₆N₁₀O₈S₂
Family: Sildenafil
Synonyms: Sildenafil Dimer Impurity, Sildenafil dimer

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