Timolol EP Impurity B（S-Isomer) CAS 158636-96-5

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.158636-96-5
Molecular FormulaC13H24N4O3S
Molecular Weight316.42 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Timolol EP Impurity B（S-Isomer) CAS 158636-96-5 chemical structure

Description

Timolol EP Impurity B（S-Isomer) (CAS 158636-96-5) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C13H24N4O3S. Molecular weight: 316.42 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.

Physical & Chemical Properties

Molecular FormulaC13H24N4O3S
Molecular Weight316.42 g/mol
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)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2002
Nitrogen Atoms4
Sulfur Atoms1

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