2-(4-Ethoxybenzylidene)-1H-indene-1,3(2H)-dione CAS 57189-82-9

Purity 97%+In StockPharmaceutical Standards
CAS No.57189-82-9
Molecular FormulaC18H14O3
Molecular Weight278.30 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-(4-Ethoxybenzylidene)-1H-indene-1,3(2H)-dione CAS 57189-82-9 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 278.30 g/mol gives 2-(4-Ethoxybenzylidene)-1H-indene-1,3(2H)-dione distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

2-(4-Ethoxybenzylidene)-1H-indene-1,3(2H)-dione (CAS 57189-82-9) is a high-purity analytical reference standard with the molecular formula C18H14O3 and a molecular weight of 278.30 g/mol.

Based on its molecular formula C18H14O3, 2-(4-Ethoxybenzylidene)-1H-indene-1,3(2H)-dione contains a steroid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 278.30 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

CATO manufactures 2-(4-Ethoxybenzylidene)-1H-indene-1,3(2H)-dione under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC18H14O3
Molecular Weight278.30 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.)1973

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