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Pharmaceutical analytical standards

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

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Results 1,941-1,950 of 59,523

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

Tadalafil Impurity 49

ImpurityLevels of characterisation
Cat. No.
P-T005-113
Formula
C22H22N4O3
Family
Tadalafil
Synonyms
(2R)-2-[[(2R)-2-Amino-3-(1H-indol-3-yl)propanoyl]amino]-3-(1H-indol-3-yl)propanoic acid

Tadalafil Impurity 51

ImpurityLevels of characterisation
Cat. No.
P-T005-115
Formula
C22H20N2O6
Family
Tadalafil
Synonyms
Methyl (1R,3R)-1-(1,3-benzodioxol-5-yl)-2-(2-hydroxyacetyl)-1,3,4,9-tetrahydropyrido[3,4-b]indole-3-carboxylate

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