2-(O-tolyloxy)ethane-1-sulfonyl chloride CAS 1018340-50-5

Purity 97%+In StockPharmaceutical Standards
CAS No.1018340-50-5
Molecular FormulaC9H11ClO3S
Molecular Weight234.70 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-(O-tolyloxy)ethane-1-sulfonyl chloride CAS 1018340-50-5 chemical structure

Description

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

2-(O-tolyloxy)ethane-1-sulfonyl chloride (CAS 1018340-50-5), molecular formula C9H11ClO3S and molecular weight 234.70 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 2-(O-tolyloxy)ethane-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.

As a certified reference material (CRM), 2-(O-tolyloxy)ethane-1-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

Molecular FormulaC9H11ClO3S
Molecular Weight234.70 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1988
Halogen ContentCl-containing
Sulfur Atoms1

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