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Lorazepam

Lorazepam Impurities & Reference Standards

Lorazepam is recognized as an active pharmaceutical ingredient (API) that supports formulation development, process validation, and quality assurance in drug manufacturing. Lorazepam is registered under CAS Number 846-49-1. It has a molecular formula of C15H10Cl2N2O2 and a molecular weight of 321.2 g/mol. Analytical laboratories rely on Lorazepam and its associated impurity standards for method development, quality control testing, and pharmacopoeial compliance (ICH, USP, BP, EP). Our Lorazepam reference standards are provided with full documentation — Certificate of Analysis (CoA), HPLC chromatographic data, and spectral characterization — to support pharmaceutical R&D and GMP manufacturing.


Associated Impurities

Lorazepam Impurity – A

  • CAS No: 2958-36-3
  • Mol. F.: C13H9Cl2NO

Lorazepam Impurity – B

  • CAS No: 2848-96-6
  • Mol. F.: C17H12Cl2N2O3

Lorazepam Impurity – C

  • CAS No:
  • Mol. F.: C15H10Cl2N2O2

Lorazepam Impurity – D

  • CAS No: 54699-91-1
  • Mol. F.: C15H10Cl2N2O2

Lorazepam Impurity – E

  • CAS No: 93955-15-8
  • Mol. F.: C15H8Cl2N2O
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