3,5-Dimethylisothiazole CAS 24260-24-0

Purity 97%+In StockPharmaceutical Standards
CAS No.24260-24-0
Molecular FormulaC5H7NS
Molecular Weight113.18 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3,5-Dimethylisothiazole CAS 24260-24-0 chemical structure

Description

3,5-Dimethylisothiazole (CAS 24260-24-0) is a high-purity analytical reference standard with the molecular formula C5H7NS and a molecular weight of 113.18 g/mol.

The molecular framework of 3,5-Dimethylisothiazole (C5H7NS) is characterized by a nitrile group, sulfur-containing functionality. 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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-Dimethylisothiazole 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 FormulaC5H7NS
Molecular Weight113.18 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in methanol, acetonitrile, DMSO
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1963
Nitrogen Atoms1
Sulfur Atoms1

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