1-Methyl-1H-pyrazole-4-thiol CAS 1152556-14-3

Purity 97%+In StockPharmaceutical Standards
CAS No.1152556-14-3
Molecular FormulaC4H6N2S
Molecular Weight114.17 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-Methyl-1H-pyrazole-4-thiol CAS 1152556-14-3 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 1-Methyl-1H-pyrazole-4-thiol.

1-Methyl-1H-pyrazole-4-thiol (CAS 1152556-14-3), molecular formula C4H6N2S and molecular weight 114.17 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 1-Methyl-1H-pyrazole-4-thiol (C4H6N2S) contains a nitrile group, sulfur-containing functionality. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 114.17 g/mol, it falls into the low-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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.

As a certified reference material (CRM), 1-Methyl-1H-pyrazole-4-thiol 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.)1989
Nitrogen Atoms2
Sulfur Atoms1

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Why CATO?