Cotrimoxazole CAS 8064-90-2

Purity >95%In StockPharmaceutical Standards
CAS No.8064-90-2
Molecular FormulaC14H18N4O3
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Cotrimoxazole CAS 8064-90-2 chemical structure

Description

As a certified reference material (CRM), Cotrimoxazole 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.

Cotrimoxazole (CAS 8064-90-2) is a high-purity analytical reference standard with the molecular formula C14H18N4O3C10H11N3O3S and a molecular weight of 543.60 g/mol.

Based on its molecular formula C14H18N4O3C10H11N3O3S, Cotrimoxazole contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 543.60 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.

Physical & Chemical Properties

Molecular FormulaC14H18N4O3 C10H11N3O3S
Molecular Weight543.60 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)14.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1959
Nitrogen Atoms7
Sulfur Atoms1

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