Nalfurafine Impurity 9 CAS 539-47-9

Description

Compared with other compounds in its class, the molecular weight of 138.12 g/mol gives Nalfurafine Impurity 9 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Nalfurafine Impurity 9 (CAS 539-47-9), a pharmacopoeial impurity reference standard (molecular formula C7H6O3, MW 138.12 g/mol) used for the identification and quantification of trace impurities in APIs.

Structurally, Nalfurafine Impurity 9 (C7H6O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 138.12 g/mol, it falls into the low-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.

CATO manufactures Nalfurafine Impurity 9 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?

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