(17β)-N-(1,1-Dimethylethyl)-3-oxoandrost-4-ene-17-carboxamide
- CAS
- 131267-80-6
- Formula
- C24H37NO2
- MW
- 371.6 g/mol
VQ-037270
Impurity reference standards
Finasteride impurities & reference standards
Characterised Finasteride impurities, degradation products and related compounds for analytical method development, validation, QC release and regulatory filings.
22reference materials
1isotope-labelled
COAHPLC · NMR · MS on request
Parent API: Finasteride
98319-26-7 · C23H36N2O2
![(4AR,4bS,6aS,7R,9aS,9bS,11aR)-N-(tert-Butyl)-4a,6a-dimethyl-2-oxo-2,4a,4b,5,6,6a,7,8,9,9a,9b,10,11,11a-tetradecahydro-1H-indeno[5,4-f]quinoline-7-carboxamide chemical structure](/media/structures/DBEPLOCGEIEOCV-WYNQROEXSA-N.svg)
(4AR,4bS,6aS,7R,9aS,9bS,11aR)-N-(tert-Butyl)-4a,6a-dimethyl-2-oxo-2,4a,4b,5,6,6a,7,8,9,9a,9b,10,11,11a-tetradecahydro-1H-indeno[5,4-f]quinoline-7-carboxamide
- CAS
- 140375-21-9
- Formula
- C23H36N2O2
- MW
- 372.5 g/mol
VQ-037268
![(4AR,4bS,6aS,7S,9aS,9bS)-N-(1,1-Dimethylethyl)-2,3,4,4a,4b,5,6,6a,7,8,9,9a,9b,10-tetradecahydro-4a,6a-dimethyl-2-oxo-1H-indeno[5,4-f]quinoline-7-carboxamide chemical structure](/media/structures/IHYQEUFHHYXVFL-FIIPNDBVSA-N.svg)
(4AR,4bS,6aS,7S,9aS,9bS)-N-(1,1-Dimethylethyl)-2,3,4,4a,4b,5,6,6a,7,8,9,9a,9b,10-tetradecahydro-4a,6a-dimethyl-2-oxo-1H-indeno[5,4-f]quinoline-7-carboxamide
- CAS
- 166896-74-8
- Formula
- C23H36N2O2
- MW
- 372.5 g/mol
VQ-030736
![3-((3S,3AS,5aS,6R,9aS,9bS)-3-(methoxycarbonyl)-3a,6-dimethyl-7-oxododecahydro-1H-cyclopenta[a]naphthalen-6-yl)propanoic acid](/media/pack/3-3s3as5as6r9as9bs-3-methoxycarbonyl-3a6-dimethyl-7-oxododecahydro-1h.svg?v=3)
3-((3S,3AS,5aS,6R,9aS,9bS)-3-(methoxycarbonyl)-3a,6-dimethyl-7-oxododecahydro-1H-cyclopenta[a]naphthalen-6-yl)propanoic acid
- CAS
- 92472-33-8
- Formula
- C20H30O5
- MW
- 350.46 g/mol
VQ-037266
![Des[[N-(1,1-Dimethylethyl)amino]carbonyl] 17-(Propionyl) Finasteride chemical structure](/media/structures/YSLFTQVHOQDRAP-QCVZGKPXSA-N.svg)
Des[[N-(1,1-Dimethylethyl)amino]carbonyl] 17-(Propionyl) Finasteride
- CAS
- 1346604-11-2
- Formula
- C21H31NO2
- MW
- 329.5 g/mol
VQ-048379
N-Des(1,1-dimethylethyl) N-Cyclohexyl Finasteride
- CAS
- 133216-45-2
- Formula
- C25H38N2O2
- MW
- 398.6 g/mol
VQ-030733
FAQs — Finasteride impurities
Which Finasteride impurities do you supply?
We list 22 Finasteride-related reference materials, including process impurities, degradation products, stable-isotope-labelled standards and related compounds. Each is supplied with a COA, and characterisation data (HPLC, 1H-NMR, MS, IR) can be provided on request.
What are Finasteride impurity standards used for?
They are used for analytical method development and validation, impurity identification and quantification, forced-degradation and stability studies, and to support ANDA, DMF and other regulatory submissions under ICH Q3A/Q3B (and ICH M7 for mutagenic impurities).
Can you synthesise a Finasteride impurity that is not listed?
Yes. Our custom synthesis service can prepare and characterise unlisted impurities, metabolites and labelled analogues from milligram to gram scale. Share the structure or name and required quantity for a quotation.
Request Finasteride impurity standards
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