Tadalafil Impurity 74 CAS 171596-41-1

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.171596-41-1
Molecular FormulaC20H18N2O4
Molecular Weight350.37 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Tadalafil Impurity 74 CAS 171596-41-1 chemical structure

Description

Tadalafil Impurity 74 (CAS 171596-41-1) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C20H18N2O4. Molecular weight: 350.37 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.

Physical & Chemical Properties

Molecular FormulaC20H18N2O4
Molecular Weight350.37 g/mol
AppearancePale yellow to yellow crystalline powder
Purity>95%
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)13.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2006
Nitrogen Atoms2

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