LORAZEPAM
UNII O26FZP769L

Substance Identification & Data

This profile provides standardized clinical and technical data for Lorazepam, uniquely identified by the FDA Unique Ingredient Identifier (UNII) O26FZP769L.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 846-49-1 and the RxNorm Concept ID (RxCUI) 6470. Explore the sections below for detailed nomenclature and a complete directory of NDC-listed products containing this ingredient.

FDA UNII Code
O26FZP769L
CAS Registry Number
846-49-1
RxNorm Concept ID

Detailed Substance Profile

Preferred Name
LORAZEPAM
Official standardized name for this substance within the FDA UNII nomenclature system.
Molecular Formula
O26FZP769L
The specific atomic composition represented as a molecular structure string.
InChIKey
C15H10Cl2N2O2
International Chemical Identifier digital signature for unique molecular identification.
SMILES String
DIWRORZWFLOCLC-UHFFFAOYSA-N
Line notation for describing the chemical structure and connectivity of atoms.
NCI Thesaurus
National Cancer Institute reference terminology for clinical and research data.
PubChem CID
Unique identification number in the NCBI database of chemical substances.
INN ID
2809
Sequential identifier assigned via the WHO International Nonproprietary Name program.
Substance Type
chemical
ISO 11238 classification category (e.g., Chemical, Polymer, Protein).
Ingredient Role
C1(=NC(C(=O)Nc2c1cc(cc2)Cl)O)c3c(Cl)cccc3

Synonyms and Nomenclature

This section provides a complete list of nomenclature and identifier mappings for Lorazepam. Identifiers are organized into official regulatory terms, commercial trade names, and technical systematic synonyms used to ensure accurate identification across clinical pharmaceutical databases, regulatory filings, and electronic health records.

FDA Official Name

LORAZEPAM

Common Names & Synonyms

(+/-)-7-CHLORO-5-(O-CHLOROPHENYL)-1,3-DIHYDRO-3-HYDROXY-2H-1,4-BENZODIAZEPIN-2-ONE
LORAZEPAM [EP IMPURITY]
LORAZEPAM [EP MONOGRAPH]
LORAZEPAM [INN]
LORAZEPAM [JAN]
LORAZEPAM [MART.]
LORAZEPAM [MI]
LORAZEPAM [ORANGE BOOK]
LORAZEPAM [USAN]
LORAZEPAM [USP MONOGRAPH]
LORAZEPAM [VANDF]
LORAZEPAM [WHO-DD]
LORAZEPAM CIV
LORAZEPAM CIV [USP-RS]

Brand / Trade Names

ATIVAN
LORAZ
LOREEV XR

Systematic Nomenclature

2H-1,4-BENZODIAZEPIN-2-ONE, 7-CHLORO-5-(2-CHLOROPHENYL)-1,3-DIHYDRO-3-HYDROXY-, (+/-)-
7-CHLORO-5-(O-CHLOROPHENYL)-1,3-DIHYDRO-3-HYDROXY-2H-1,4-BENZODIAZEPIN-2-ONE

Technical Codes

WY-4036

NDC Products Containing LORAZEPAM

This unique ingredient identifier is listed as an ingredient or substance in the following products in the NDC directory: