3-Ethyl-4-methylpyrrole-2,5-dione CAS 20189-42-8

Purity 97%+In StockPharmaceutical Standards
CAS No.20189-42-8
Molecular FormulaC7H9NO2
Molecular Weight139.15 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Ethyl-4-methylpyrrole-2,5-dione CAS 20189-42-8 chemical structure

Description

CATO supplies 3-Ethyl-4-methylpyrrole-2,5-dione (CAS 20189-42-8), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C7H9NO2. Molecular weight: 139.15 g/mol. Batch-specific COA and technical support are available on request.

Physical & Chemical Properties

Molecular FormulaC7H9NO2
Molecular Weight139.15 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1962
Nitrogen Atoms1

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