Levonorgestrel EP Impurity I CAS 20402-62-4

Description

Compared with other compounds in its class, the molecular weight of 328.45 g/mol gives Levonorgestrel EP Impurity I distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Levonorgestrel EP Impurity I (CAS 20402-62-4), molecular formula C21H28O3 and molecular weight 328.45 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, Levonorgestrel EP Impurity I (C21H28O3) contains a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 328.45 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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.

CATO manufactures Levonorgestrel EP Impurity I under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

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