Methyl (E)-4-((4-oxochroman-3-ylidene)methyl)benzoate CAS 503040-22-0

Purity 97%+In StockPharmaceutical Standards
CAS No.503040-22-0
Molecular FormulaC18H14O4
Molecular Weight294.30 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Methyl (E)-4-((4-oxochroman-3-ylidene)methyl)benzoate CAS 503040-22-0 chemical structure

Description

Methyl (E)-4-((4-oxochroman-3-ylidene)methyl)benzoate (CAS 503040-22-0) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C18H14O4. Molecular weight: 294.30 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.

Physical & Chemical Properties

Molecular FormulaC18H14O4
Molecular Weight294.30 g/mol
AppearancePale yellow to 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
Degree of Unsaturation (DBE)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1984

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