Desmethylene Tadalafil CAS 171489-03-5

Purity >90%In StockPharmaceutical Standards
CAS No.171489-03-5
Molecular FormulaC21H19N3O4
Molecular Weight377.39 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Desmethylene Tadalafil CAS 171489-03-5 chemical structure

Description

Desmethylene Tadalafil (CAS 171489-03-5) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C21H19N3O4. Molecular weight: 377.39 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.

Physical & Chemical Properties

Molecular FormulaC21H19N3O4
Molecular Weight377.39 g/mol
AppearancePale yellow to yellow crystalline powder
Purity>90%
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)14.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2005
Nitrogen Atoms3

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