rac-(1R,2S)-2-methoxycyclopentane-1-sulfonyl chloride CAS 1909286-57-2

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including rac-(1R,2S)-2-methoxycyclopentane-1-sulfonyl chloride.

rac-(1R,2S)-2-methoxycyclopentane-1-sulfonyl chloride (CAS 1909286-57-2), molecular formula C6H11ClO3S and molecular weight 198.67 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, rac-(1R,2S)-2-methoxycyclopentane-1-sulfonyl chloride (C6H11ClO3S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 1.0, corresponding to approximately 1 ring(s) or double-bond equivalent(s). With a molecular weight of 198.67 g/mol, it falls into the medium-molecular-weight range. 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.

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

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