Ethyl 4-(3,5-dimethylphenyl)-2-methyl-4-oxobutyrate CAS 898776-70-0

Purity 97%+In StockPharmaceutical Standards
CAS No.898776-70-0
Molecular FormulaC15H20O3
Molecular Weight248.32 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Ethyl 4-(3,5-dimethylphenyl)-2-methyl-4-oxobutyrate CAS 898776-70-0 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 248.32 g/mol gives Ethyl 4-(3,5-dimethylphenyl)-2-methyl-4-oxobutyrate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Ethyl 4-(3,5-dimethylphenyl)-2-methyl-4-oxobutyrate (CAS 898776-70-0) is a high-purity analytical reference standard with the molecular formula C15H20O3 and a molecular weight of 248.32 g/mol.

Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, Ethyl 4-(3,5-dimethylphenyl)-2-methyl-4-oxobutyrate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 248.32 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.

As a certified reference material (CRM), Ethyl 4-(3,5-dimethylphenyl)-2-methyl-4-oxobutyrate 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.

Physical & Chemical Properties

Molecular FormulaC15H20O3
Molecular Weight248.32 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
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987

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