5-(3-Methylisoxazol-5-yl)thiophene-2-sulfonyl chloride CAS 1282218-14-7

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 5-(3-Methylisoxazol-5-yl)thiophene-2-sulfonyl chloride.

5-(3-Methylisoxazol-5-yl)thiophene-2-sulfonyl chloride (CAS 1282218-14-7), molecular formula C8H6ClNO3S2 and molecular weight 263.72 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C8H6ClNO3S2, 5-(3-Methylisoxazol-5-yl)thiophene-2-sulfonyl chloride contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 263.72 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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), 5-(3-Methylisoxazol-5-yl)thiophene-2-sulfonyl chloride 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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