4-Chloro-2-methylbenzenethiol CAS 17178-01-7

Purity 97%+In StockPharmaceutical Standards
CAS No.17178-01-7
Molecular FormulaC7H7ClS
Molecular Weight158.65 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Chloro-2-methylbenzenethiol CAS 17178-01-7 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 158.65 g/mol gives 4-Chloro-2-methylbenzenethiol distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 4-Chloro-2-methylbenzenethiol (CAS 17178-01-7), a certified reference material (molecular formula C7H7ClS, MW 158.65 g/mol) for analytical method development and quality control.

4-Chloro-2-methylbenzenethiol (C7H7ClS) contains sulfur-containing functionality, chlorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.

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

Molecular FormulaC7H7ClS
Molecular Weight158.65 g/mol
Purity97%+
StorageStore at 2-8°C, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1961
Halogen ContentCl-containing
Sulfur Atoms1

Related Chloro Standards

Recommended Standards

Why CATO?