1H-imidazole-5-methanethiol CAS 20979-13-9

Purity 97%+In StockPharmaceutical Standards
CAS No.20979-13-9
Molecular FormulaC4H6N2S
Molecular Weight114.17 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1H-imidazole-5-methanethiol CAS 20979-13-9 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.

CATO supplies 1H-imidazole-5-methanethiol (CAS 20979-13-9), a certified reference material (molecular formula C4H6N2S, MW 114.17 g/mol) for analytical method development and quality control.

Based on its molecular formula C4H6N2S, 1H-imidazole-5-methanethiol contains a nitrile group, sulfur-containing functionality; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 114.17 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

As a certified reference material (CRM), 1H-imidazole-5-methanethiol 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 FormulaC4H6N2S
Molecular Weight114.17 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1962
Nitrogen Atoms2
Sulfur Atoms1

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