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Pharmaceutical analytical standards

Active ingredients, pharmacopoeial impurities, metabolites, nitrosamines and labelled standards.

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Results 1,241-1,250 of 36,550

Tadalafil Impurity 34

ImpurityLevels of characterisation
Cat. No.
P-T005-098
Formula
C21H20N2O4
Family
Tadalafil
Synonyms
Ethyl (1R,3R)-1-(1,3-benzodioxol-5-yl)-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole-3-carboxylate

Tadalafil Impurity 37 Hydrochloride

ImpurityLevels of characterisation
Cat. No.
P-T005-101
Formula
C23H23N3O5·HCl
Family
Tadalafil
Synonyms
Methyl (1R,3R)-1-(1,3-benzodioxol-5-yl)-2-[2-(methylamino)acetyl]-1,3,4,9-tetrahydropyrido[3,4-b]indole-3-carboxylate hydrochloride

Tadalafil Impurity 39

ImpurityLevels of characterisation
Cat. No.
P-T005-103
Formula
C30H28N4O6
Family
Tadalafil
Synonyms
(2R)-2-[[1,3-Benzodioxol-5-yl-[[(1R)-1-carboxy-2-(1H-indol-3-yl)ethyl]amino]methyl]amino]-3-(1H-indol-3-yl)propanoic acid

Tadalafil Impurity 41

ImpurityLevels of characterisation
Cat. No.
P-T005-105
Formula
C20H19N3O3
Family
Tadalafil
Synonyms
1-[1-(1,3-Benzodioxol-5-yl)-9-hydroxy-1,2-dihydropyrido[3,4-b]indol-3-yl]-N-methylmethanamine

Tadalafil Impurity 42

ImpurityLevels of characterisation
Cat. No.
P-T005-106
Formula
C32H36N4O3
Family
Tadalafil
Synonyms
(10R,15R)-10-(1,3-Benzodioxol-5-yl)-13-cyclohexyl-12-cyclohexylimino-8,11,13-triazatetracyclo[7.7.0.02,7.011,15]hexadeca-1(9),2,4,6-tetraen-14-one

Tadalafil Impurity 43

ImpurityLevels of characterisation
Cat. No.
P-T005-107
Formula
C20H21N3O3
Family
Tadalafil
Synonyms
N-[[1-(1,3-Benzodioxol-5-yl)-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indol-3-yl]methyl]-N-methylhydroxylamine

Tadalafil Impurity 44

ImpurityLevels of characterisation
Cat. No.
P-T005-108
Formula
C21H19N3O4
Family
Tadalafil
Synonyms
(2S,8S)-2-(3,4-Dihydroxyphenyl)-6-methyl-3,6,17-triazatetracyclo[8.7.0.03,8.011,16]heptadeca-1(10),11,13,15-tetraene-4,7-dione

Tadalafil Impurity 45

ImpurityLevels of characterisation
Cat. No.
P-T005-109
Formula
C22H21N3O4
Family
Tadalafil
Synonyms
(2S,8S)-2-(4-Hydroxy-3-methoxyphenyl)-6-methyl-3,6,17-triazatetracyclo[8.7.0.03,8.011,16]heptadeca-1(10),11,13,15-tetraene-4,7-dione

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