1-methylbenzimidazole CAS 1632-83-3

Purity 97%+In StockPharmaceutical Standards
CAS No.1632-83-3
Molecular FormulaC8H16N2
Molecular Weight140.23 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-methylbenzimidazole CAS 1632-83-3 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-methylbenzimidazole.

1-methylbenzimidazole (CAS 1632-83-3), molecular formula C8H16N2 and molecular weight 140.23 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a nitrile group, 1-methylbenzimidazole is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 140.23 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.

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 FormulaC8H16N2
Molecular Weight140.23 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)2.0
CAS Registry Year (est.)1957
Nitrogen Atoms2

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Why CATO?