7-Oxo-7-(phenanthren-9-yl)heptanoic acid CAS 898766-07-9

Purity 97%+In StockPharmaceutical Standards
CAS No.898766-07-9
Molecular FormulaC21H20O3
Molecular Weight320.38 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

7-Oxo-7-(phenanthren-9-yl)heptanoic acid CAS 898766-07-9 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.

CATO supplies 7-Oxo-7-(phenanthren-9-yl)heptanoic acid (CAS 898766-07-9), a certified reference material (molecular formula C21H20O3, MW 320.38 g/mol) for analytical method development and quality control.

The molecular framework of 7-Oxo-7-(phenanthren-9-yl)heptanoic acid (C21H20O3) is characterized by a steroid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC21H20O3
Molecular Weight320.38 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)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987

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