7,7-Dimethyl-4-phenyl-4,6,7,8-tetrahydro-2H-chromene-2,5(3H)-dione CAS 27044-89-9

Purity 97%+In StockPharmaceutical Standards
CAS No.27044-89-9
Molecular FormulaC17H18O3
Molecular Weight270.32 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

7,7-Dimethyl-4-phenyl-4,6,7,8-tetrahydro-2H-chromene-2,5(3H)-dione CAS 27044-89-9 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 270.32 g/mol gives 7,7-Dimethyl-4-phenyl-4,6,7,8-tetrahydro-2H-chromene-2,5(3H)-dione distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

7,7-Dimethyl-4-phenyl-4,6,7,8-tetrahydro-2H-chromene-2,5(3H)-dione (CAS 27044-89-9), molecular formula C17H18O3 and molecular weight 270.32 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a steroid core, a hydroxyl group, an ether linkage, 7,7-Dimethyl-4-phenyl-4,6,7,8-tetrahydro-2H-chromene-2,5(3H)-dione is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 270.32 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).

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

CATO manufactures 7,7-Dimethyl-4-phenyl-4,6,7,8-tetrahydro-2H-chromene-2,5(3H)-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 FormulaC17H18O3
Molecular Weight270.32 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)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1964

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