Terazosin EP Impurity K CAS 19216-56-9

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.19216-56-9
Molecular FormulaC19H21N5O4
Molecular Weight383.40 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Terazosin EP Impurity K CAS 19216-56-9 chemical structure

Description

Terazosin EP Impurity K (CAS 19216-56-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C19H21N5O4. Molecular weight: 383.40 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.

Physical & Chemical Properties

Molecular FormulaC19H21N5O4
Molecular Weight383.40 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
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)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1962
Nitrogen Atoms5

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