Tiamulin EP Impurity B CAS 7708-55-6

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.7708-55-6
Molecular FormulaC13H21NS
Molecular Weight223.38 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Tiamulin EP Impurity B CAS 7708-55-6 chemical structure

Description

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 supplies Tiamulin EP Impurity B (CAS 7708-55-6), a pharmacopoeial impurity reference standard (molecular formula C13H21NS, MW 223.38 g/mol) used for the identification and quantification of trace impurities in APIs.

Tiamulin EP Impurity B (C13H21NS) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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.

Physical & Chemical Properties

Molecular FormulaC13H21NS
Molecular Weight223.38 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1959
Nitrogen Atoms1
Sulfur Atoms1

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