Temozolomide EP Impurity B CAS 113942-30-6

Purity >90%In StockPharmacopoeial Impurity Standards
CAS No.113942-30-6
Molecular FormulaC6H5N5O3
Molecular Weight195.14 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Temozolomide EP Impurity B CAS 113942-30-6 chemical structure

Description

Temozolomide EP Impurity B (CAS 113942-30-6) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C6H5N5O3. Molecular weight: 195.14 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.

Physical & Chemical Properties

Molecular FormulaC6H5N5O3
Molecular Weight195.14 g/mol
AppearanceOff-white to pale yellow crystalline powder. (faint amine-like odor)
Purity>90%
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
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.)1989
Nitrogen Atoms5

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