9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-Oxide CAS 35948-25-5

Description

9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-Oxide (CAS 35948-25-5) is a high-purity analytical reference standard with the molecular formula C12H9O2P and a molecular weight of 216.17 g/mol.

Owing to organophosphorus functionality, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-Oxide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 216.17 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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.

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

Why CATO?

• ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
• 130,000+ catalog items in stock, COA supplied with every batch
• Worldwide shipping with full export documentation (HS code guidance available)
• Technical support: +86 18665070610 / Nicole.chen@cato-chem.com