Tadalafil Impurity 137 CAS 859964-45-7

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.859964-45-7
Molecular FormulaC9H6O4
Molecular Weight178.14 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Tadalafil Impurity 137 CAS 859964-45-7 chemical structure

Description

Tadalafil Impurity 137 (CAS 859964-45-7) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C9H6O4. Molecular weight: 178.14 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.

Physical & Chemical Properties

Molecular FormulaC9H6O4
Molecular Weight178.14 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987

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