Colistin A sulfate（Polymyxin E1 sulfate） CAS 207990-63-4

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Colistin A sulfate（Polymyxin E1 sulfate）.

Colistin A sulfate（Polymyxin E1 sulfate） (CAS 207990-63-4) is a high-purity analytical reference standard with the molecular formula C53H100N16O132.H2SO4 and a molecular weight of 3171.43 g/mol.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, an ether linkage, Colistin A sulfate（Polymyxin E1 sulfate） is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 3171.43 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.

As a certified reference material (CRM), Colistin A sulfate（Polymyxin E1 sulfate） meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

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