Tadalafil Impurity 20 CAS 171752-68-4

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.171752-68-4
Molecular FormulaC20H18N2O4 HCl
Molecular WeightN/A
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Tadalafil Impurity 20 CAS 171752-68-4 chemical structure

Description

CATO supplies Tadalafil Impurity 20 (CAS 171752-68-4), a pharmacopoeial impurity standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C20H18N2O4 HCl. Batch-specific COA and technical support are available on request.

Physical & Chemical Properties

Molecular FormulaC20H18N2O4 HCl
Molecular Weight386.83 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor)
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; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2006
Halogen ContentCl-containing
Nitrogen Atoms2

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