3,5-Bis(methylthio)isothiazole-4-carbonyl chloride CAS 4886-16-2

Purity 97%+In StockPharmaceutical Standards
CAS No.4886-16-2
Molecular FormulaC6H6ClNOS3
Molecular Weight239.77 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3,5-Bis(methylthio)isothiazole-4-carbonyl chloride CAS 4886-16-2 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 3,5-Bis(methylthio)isothiazole-4-carbonyl chloride.

CATO supplies 3,5-Bis(methylthio)isothiazole-4-carbonyl chloride (CAS 4886-16-2), a certified reference material (molecular formula C6H6ClNOS3, MW 239.77 g/mol) for analytical method development and quality control.

The molecular framework of 3,5-Bis(methylthio)isothiazole-4-carbonyl chloride (C6H6ClNOS3) is characterized by an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

As a certified reference material (CRM), 3,5-Bis(methylthio)isothiazole-4-carbonyl 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 FormulaC6H6ClNOS3
Molecular Weight239.77 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1958
Halogen ContentCl-containing
Nitrogen Atoms1
Sulfur Atoms3

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