Polymyxin E2 /Colistin B Acetate CAS 7239-48-7 (free base)

Purity ≥95%In StockPharmaceutical Standards
CAS No.7239-48-7 (free base)
Molecular FormulaC52H98N16O13
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Polymyxin E2 /Colistin B Acetate CAS 7239-48-7 (free base) chemical structure

Description

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.

Polymyxin E2 /Colistin B Acetate (CAS 7239-48-7 (free base)), molecular formula N/A and molecular weight N/A g/mol, is a CATO reference standard with documented purity and traceability.

Polymyxin E2 /Colistin B Acetate is supplied as a fully characterized reference material; its structural identity, assigned purity, and stability data are documented in the batch-specific Certificate of Analysis (COA).

CATO manufactures Polymyxin E2 /Colistin B Acetate 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

Molecular FormulaC52H98N16O13 X*C2H4O2
Molecular Weight1215.51 g/mol
Purity≥95%
StorageStore in a cool place (≤25°C), protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Nitrogen Atoms16

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