1,1-Bis(4-chlorophenyl)-2-(m-tolylthio)ethan-1-ol CAS 303152-26-3

Purity 97%+In StockPharmaceutical Standards
CAS No.303152-26-3
Molecular FormulaC21H18Cl2OS
Molecular Weight389.34 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1,1-Bis(4-chlorophenyl)-2-(m-tolylthio)ethan-1-ol CAS 303152-26-3 chemical structure

Description

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.

CATO supplies 1,1-Bis(4-chlorophenyl)-2-(m-tolylthio)ethan-1-ol (CAS 303152-26-3), a certified reference material (molecular formula C21H18Cl2OS, MW 389.34 g/mol) for analytical method development and quality control.

Owing to a steroid core, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution, 1,1-Bis(4-chlorophenyl)-2-(m-tolylthio)ethan-1-ol is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 389.34 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 FormulaC21H18Cl2OS
Molecular Weight389.34 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentCl-containing
Sulfur Atoms1

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