2-Ethoxy-5-methylbenzene-1-sulfonyl chloride CAS 187471-28-9

Description

Compared with other compounds in its class, the molecular weight of 234.70 g/mol gives 2-Ethoxy-5-methylbenzene-1-sulfonyl chloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

2-Ethoxy-5-methylbenzene-1-sulfonyl chloride (CAS 187471-28-9), molecular formula C9H11ClO3S and molecular weight 234.70 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 2-Ethoxy-5-methylbenzene-1-sulfonyl chloride (C9H11ClO3S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 234.70 g/mol, it falls into the medium-molecular-weight range. 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.

CATO manufactures 2-Ethoxy-5-methylbenzene-1-sulfonyl chloride 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

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