4-(1,3-Benzothiazol-2-yl)-2-chlorophenol CAS 749906-91-0

Purity 97%+In StockPharmaceutical Standards
CAS No.749906-91-0
Molecular FormulaC13H8ClNOS
Molecular Weight261.73 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-(1,3-Benzothiazol-2-yl)-2-chlorophenol CAS 749906-91-0 chemical structure

Description

CATO supplies 4-(1,3-Benzothiazol-2-yl)-2-chlorophenol (CAS 749906-91-0), a certified reference material (molecular formula C13H8ClNOS, MW 261.73 g/mol) for analytical method development and quality control.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution, 4-(1,3-Benzothiazol-2-yl)-2-chlorophenol is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 261.73 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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

Molecular FormulaC13H8ClNOS
Molecular Weight261.73 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
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)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1986
Halogen ContentCl-containing
Nitrogen Atoms1
Sulfur Atoms1

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