5-chloro-2-methyl-pyrazol-3-amine CAS 167408-80-2

Purity 97%+In StockPharmaceutical Standards
CAS No.167408-80-2
Molecular FormulaC4H10ClN3
Molecular Weight135.60 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-chloro-2-methyl-pyrazol-3-amine CAS 167408-80-2 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-chloro-2-methyl-pyrazol-3-amine (CAS 167408-80-2) is a high-purity analytical reference standard with the molecular formula C4H10ClN3 and a molecular weight of 135.60 g/mol.

Based on its molecular formula C4H10ClN3, 5-chloro-2-methyl-pyrazol-3-amine contains chlorine substitution; these features give the compound characteristic molecular-ion distribution patterns in mass spectrometry. The molecular weight of 135.60 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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.

Physical & Chemical Properties

Molecular FormulaC4H10ClN3
Molecular Weight135.60 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)1.0
CAS Registry Year (est.)2004
Halogen ContentCl-containing
Nitrogen Atoms3

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