5-Methyl-2-methylthiopyridine CAS 51933-75-6

Purity 97%+In StockPharmaceutical Standards
CAS No.51933-75-6
Molecular FormulaC7H9NS
Molecular Weight139.22 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-Methyl-2-methylthiopyridine CAS 51933-75-6 chemical structure

Description

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.

5-Methyl-2-methylthiopyridine (CAS 51933-75-6), molecular formula C7H9NS and molecular weight 139.22 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 5-Methyl-2-methylthiopyridine (C7H9NS) is characterized by a nitrile group, sulfur-containing functionality, 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).

CATO manufactures 5-Methyl-2-methylthiopyridine under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC7H9NS
Molecular Weight139.22 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)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1971
Nitrogen Atoms1
Sulfur Atoms1

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Why CATO?