2H-Benzimidazol-2-one CAS 43135-91-7

Purity 97%+In StockPharmaceutical Standards
CAS No.43135-91-7
Molecular FormulaC7H4N2O
Molecular Weight132.12 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2H-Benzimidazol-2-one CAS 43135-91-7 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 2H-Benzimidazol-2-one.

2H-Benzimidazol-2-one (CAS 43135-91-7) is a high-purity analytical reference standard with the molecular formula C7H4N2O and a molecular weight of 132.12 g/mol.

Based on its molecular formula C7H4N2O, 2H-Benzimidazol-2-one contains an amide group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 132.12 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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.

As a certified reference material (CRM), 2H-Benzimidazol-2-one 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 FormulaC7H4N2O
Molecular Weight132.12 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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1969
Nitrogen Atoms2

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