(5α,11β,17α)-11-[4-(dimethylamino)phenyl]-5,17-dihydroxy-19-norpregn-9-en-20-yn-3-one Cyclic 1,2-Ethanediyl Acetal CAS 91934-95-1

Description

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.

(5α,11β,17α)-11-[4-(dimethylamino)phenyl]-5,17-dihydroxy-19-norpregn-9-en-20-yn-3-one Cyclic 1,2-Ethanediyl Acetal (CAS 91934-95-1), molecular formula C30H39NO4 and molecular weight 477.63 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of (5α,11β,17α)-11-[4-(dimethylamino)phenyl]-5,17-dihydroxy-19-norpregn-9-en-20-yn-3-one Cyclic 1,2-Ethanediyl Acetal (C30H39NO4) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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.

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