Quetiapine EP Impurity S CAS 329216-63-9

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.329216-63-9
Molecular FormulaC21H25N3O3S
Molecular Weight399.51 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Quetiapine EP Impurity S CAS 329216-63-9 chemical structure

Description

Quetiapine EP Impurity S (CAS 329216-63-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C21H25N3O3S. Molecular weight: 399.51 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.

Physical & Chemical Properties

Molecular FormulaC21H25N3O3S
Molecular Weight399.51 g/mol
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)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Nitrogen Atoms3
Sulfur Atoms1

Related Quetiapine Standards

Recommended Standards

Why CATO?