5292-53-5 Benzylidenemalonic acid diethyl ester Diethyl benzalmalonate Diethyl benzylidenemalonate Ethyl benzylidenemalonate Malonic acid, diethyl ester NSC-1272 NSC1272 Propanedioic acid, diethyl ester CAS 5292-53-5

Purity 97%+In StockPharmaceutical Standards
CAS No.5292-53-5
Molecular FormulaC14H16O4
Molecular Weight248.27 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5292-53-5 Benzylidenemalonic acid diethyl ester Diethyl benzalmalonate Diethyl benzylidenemalonate Ethyl benzylidenemalonate Malonic acid, diethyl ester NSC-1272 NSC1272 Propanedioic acid, diethyl ester CAS 5292-53-5 chemical structure

Description

As a certified reference material (CRM), 5292-53-5 Benzylidenemalonic acid diethyl ester Diethyl benzalmalonate Diethyl benzylidenemalonate Ethyl benzylidenemalonate Malonic acid, diethyl ester NSC-1272 NSC1272 Propanedioic acid, diethyl ester meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

5292-53-5 Benzylidenemalonic acid diethyl ester Diethyl benzalmalonate Diethyl benzylidenemalonate Ethyl benzylidenemalonate Malonic acid, diethyl ester NSC-1272 NSC1272 Propanedioic acid, diethyl ester (CAS 5292-53-5) is a high-purity analytical reference standard with the molecular formula C14H16O4 and a molecular weight of 248.27 g/mol.

Structurally, 5292-53-5 Benzylidenemalonic acid diethyl ester Diethyl benzalmalonate Diethyl benzylidenemalonate Ethyl benzylidenemalonate Malonic acid, diethyl ester NSC-1272 NSC1272 Propanedioic acid, diethyl ester (C14H16O4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 248.27 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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

Physical & Chemical Properties

Molecular FormulaC14H16O4
Molecular Weight248.27 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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1958

Related Benzylidenemalonic Standards

Recommended Standards

Why CATO?