4-chloro-6,7-dimethylquinazoline CAS 31867-92-2

Purity 97%+In StockPharmaceutical Standards
CAS No.31867-92-2
Molecular FormulaC10H19ClN2
Molecular Weight202.72 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-chloro-6,7-dimethylquinazoline CAS 31867-92-2 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.

4-chloro-6,7-dimethylquinazoline (CAS 31867-92-2) is a high-purity analytical reference standard with the molecular formula C10H19ClN2 and a molecular weight of 202.72 g/mol.

Based on its molecular formula C10H19ClN2, 4-chloro-6,7-dimethylquinazoline contains a nitrile group, chlorine substitution; these features give the compound characteristic molecular-ion distribution patterns in mass spectrometry. The molecular weight of 202.72 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 FormulaC10H19ClN2
Molecular Weight202.72 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)2.0
CAS Registry Year (est.)1966
Halogen ContentCl-containing
Nitrogen Atoms2

Related chloro Standards

Recommended Standards

Why CATO?