Ethyl 2-oxo-5,6,7,8-tetrahydro-2H-chromene-3-carboxylate CAS 66979-47-3

Purity 97%+In StockPharmaceutical Standards
CAS No.66979-47-3
Molecular FormulaC12H14O4
Molecular Weight222.24 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Ethyl 2-oxo-5,6,7,8-tetrahydro-2H-chromene-3-carboxylate CAS 66979-47-3 chemical structure

Description

Ethyl 2-oxo-5,6,7,8-tetrahydro-2H-chromene-3-carboxylate (CAS 66979-47-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C12H14O4. Molecular weight: 222.24 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.

Physical & Chemical Properties

Molecular FormulaC12H14O4
Molecular Weight222.24 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1976

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