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Key Documents

1370305

USP

Lorazepam

United States Pharmacopeia (USP) Reference Standard

Synonym(s):

(±)-Lorazepam, 7-Chloro-5-(2-chlorophenyl)-1,3-dihydro-3-hydroxy-2H-1,4-benzodiazepin-2-one

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About This Item

Empirical Formula (Hill Notation):
C15H10Cl2N2O2
CAS Number:
Molecular Weight:
321.16
MDL number:
UNSPSC Code:
41116107
PubChem Substance ID:
NACRES:
NA.24

grade

pharmaceutical primary standard

API family

lorazepam

manufacturer/tradename

USP

drug control

USDEA Schedule I; regulated under CDSA - not available from Sigma-Aldrich Canada; psicótropo (Spain); Decreto Lei 15/93: Tabela IV (Portugal)

application(s)

pharmaceutical (small molecule)

format

neat

SMILES string

OC1N=C(c2ccccc2Cl)c3cc(Cl)ccc3NC1=O

InChI

1S/C15H10Cl2N2O2/c16-8-5-6-12-10(7-8)13(19-15(21)14(20)18-12)9-3-1-2-4-11(9)17/h1-7,15,21H,(H,18,20)

InChI key

DIWRORZWFLOCLC-UHFFFAOYSA-N

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General description

This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the issuing Pharmacopoeia.For further information and support please go to the website of the issuing Pharmacopoeia.

Application

Lorazepam USP reference standard, intended for use in specified quality tests and assays as specified in the USP compendia. Also, for use with USP monographs such as:
  • Lorazepam Injection
  • Lorazepam Oral Concentrate
  • Lorazepam Tablets

Analysis Note

These products are for test and assay use only. They are not meant for administration to humans or animals and cannot be used to diagnose, treat, or cure diseases of any kind.  ​

Other Notes

Sales restrictions may apply.

Pictograms

Health hazard

Signal Word

Warning

Hazard Statements

Hazard Classifications

Repr. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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D J Greenblatt
Clinical pharmacokinetics, 6(2), 89-105 (1981-03-01)
Oxazepam and lorazepam are 3-hydroxy benzodiazepine derivatives used as sedatives and anxiolytics. The major metabolic pathway for both compounds involves conjugation to glucuronic acid at the 3-position, followed by urinary excretion of the inactive glucuronide metabolite. Oxazepam has been administered

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