6-Ethyl-7-hydroxy-3-phenyl-2-(trifluoromethyl)-4h-chromen-4-one CAS 105258-37-5

Purity 97%+In StockPharmaceutical Standards
CAS No.105258-37-5
Molecular FormulaC18H13F3O3
Molecular Weight334.29 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

6-Ethyl-7-hydroxy-3-phenyl-2-(trifluoromethyl)-4h-chromen-4-one CAS 105258-37-5 chemical structure

Description

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

6-Ethyl-7-hydroxy-3-phenyl-2-(trifluoromethyl)-4h-chromen-4-one (CAS 105258-37-5), molecular formula C18H13F3O3 and molecular weight 334.29 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 6-Ethyl-7-hydroxy-3-phenyl-2-(trifluoromethyl)-4h-chromen-4-one (C18H13F3O3) contains a steroid core, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 334.29 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

As a certified reference material (CRM), 6-Ethyl-7-hydroxy-3-phenyl-2-(trifluoromethyl)-4h-chromen-4-one 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 FormulaC18H13F3O3
Molecular Weight334.29 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
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; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987
Halogen ContentF-containing

Related Ethyl Standards

Recommended Standards

Why CATO?