4-(Thiophen-3-yl)-1H-pyrazole CAS 76153-71-4

Purity 97%+In StockPharmaceutical Standards
CAS No.76153-71-4
Molecular FormulaC7H6N2S
Molecular Weight150.20 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-(Thiophen-3-yl)-1H-pyrazole CAS 76153-71-4 chemical structure

Description

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

CATO supplies 4-(Thiophen-3-yl)-1H-pyrazole (CAS 76153-71-4), a certified reference material (molecular formula C7H6N2S, MW 150.20 g/mol) for analytical method development and quality control.

Structurally, 4-(Thiophen-3-yl)-1H-pyrazole (C7H6N2S) contains a nitrile group, sulfur-containing functionality, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 150.20 g/mol, it falls into the medium-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.

Physical & Chemical Properties

Molecular FormulaC7H6N2S
Molecular Weight150.20 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)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1978
Nitrogen Atoms2
Sulfur Atoms1

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