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Home/Compounds/API/(+/-)-7-chloro-5-(2-chlorophenyl)-4,5-dihydro-1H-1,4-benzodiazepine-2,3-dione
C15H10Cl2N2O2
321.2 g/mol
APIWarning

(5RS)-7-Chloro-5-(2-chlorophenyl)-4,5-dihydro-1H-1,4-benzodiazepine-2,3-dione

CAS54699-91-1
Category
API
Compound Class
Heterocycle
Primary Use
Pharmaceutical Raw Material

This compound is a dichlorinated benzodiazepine derivative identified as an impurity associated with the pharmaceutical active ingredient lorazepam. It is primarily used as a reference standard in quality control and analytical testing during pharmaceutical manufacturing.

pharmaceutical impurity reference standardanalytical testing for lorazepam quality control

Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.

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Safety Reference

Health Hazard
Health Hazard
Warning
H361Suspected of damaging fertility or the unborn child
Identifiers
IUPAC Name

7-chloro-5-(2-chlorophenyl)-4,5-dihydro-1H-1,4-benzodiazepine-2,3-dione

InChIKey

QVUVOEFASMHBFO-UHFFFAOYSA-N

SMILES

C1=CC=C(C(=C1)C2C3=C(C=CC(=C3)Cl)NC(=O)C(=O)N2)Cl

Synonyms (12)
  • (5RS)-7-Chloro-5-(2-chlorophenyl)-4,5-dihydro-1H-1,4-benzodiazepine-2,3-dione; Lorazepam Imp. D (EP); Lorazepam Impurity D
  • LORAZEPAM IMPURITY D (EP IMPURITY)
  • Lorazepam EP Impurity D
  • Lorazepam impurity D, European Pharmacopoeia (EP)
  • LORAZEPAM IMPURITY D
  • Lorazepam impurity D CRS