S-(4-chlorophenyl) 5-chloro-1-methyl-1H-pyrazole-4-carbothioate CAS 959575-95-2

Purity 97%+In StockPharmaceutical Standards
CAS No.959575-95-2
Molecular FormulaC11H8Cl2N2OS
Molecular Weight287.17 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

S-(4-chlorophenyl) 5-chloro-1-methyl-1H-pyrazole-4-carbothioate CAS 959575-95-2 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 287.17 g/mol gives S-(4-chlorophenyl) 5-chloro-1-methyl-1H-pyrazole-4-carbothioate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

S-(4-chlorophenyl) 5-chloro-1-methyl-1H-pyrazole-4-carbothioate (CAS 959575-95-2), molecular formula C11H8Cl2N2OS and molecular weight 287.17 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of S-(4-chlorophenyl) 5-chloro-1-methyl-1H-pyrazole-4-carbothioate (C11H8Cl2N2OS) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).

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), S-(4-chlorophenyl) 5-chloro-1-methyl-1H-pyrazole-4-carbothioate 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 FormulaC11H8Cl2N2OS
Molecular Weight287.17 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987
Halogen ContentCl-containing
Nitrogen Atoms2
Sulfur Atoms1

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