Butyl 9-oxo-9H-fluorene-4-carboxylate CAS 93519-65-4

Purity 97%+In StockPharmaceutical Standards
CAS No.93519-65-4
Molecular FormulaC18H16O3
Molecular Weight280.32 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Butyl 9-oxo-9H-fluorene-4-carboxylate CAS 93519-65-4 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Butyl 9-oxo-9H-fluorene-4-carboxylate.

Butyl 9-oxo-9H-fluorene-4-carboxylate (CAS 93519-65-4), molecular formula C18H16O3 and molecular weight 280.32 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, Butyl 9-oxo-9H-fluorene-4-carboxylate (C18H16O3) contains a steroid core, a hydroxyl group, an ether linkage. 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 280.32 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.

As a certified reference material (CRM), Butyl 9-oxo-9H-fluorene-4-carboxylate 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 FormulaC18H16O3
Molecular Weight280.32 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)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1983

Recommended Standards

Why CATO?