4,6-Dichlorobenzo[d]oxazole-2-thiol CAS 218930-35-9

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4,6-Dichlorobenzo[d]oxazole-2-thiol.

CATO supplies 4,6-Dichlorobenzo[d]oxazole-2-thiol (CAS 218930-35-9), a certified reference material (molecular formula C7H3Cl2NOS, MW 220.08 g/mol) for analytical method development and quality control.

4,6-Dichlorobenzo[d]oxazole-2-thiol (C7H3Cl2NOS) contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, 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. 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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