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LORAZEPAM IMPURITY D is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

54699-91-1

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54699-91-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 54699-91-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,6,9 and 9 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 54699-91:
(7*5)+(6*4)+(5*6)+(4*9)+(3*9)+(2*9)+(1*1)=171
171 % 10 = 1
So 54699-91-1 is a valid CAS Registry Number.

54699-91-1 Well-known Company Product Price

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  • Sigma-Aldrich

  • (Y0000718)  Lorazepam impurity D  European Pharmacopoeia (EP) Reference Standard

  • 54699-91-1

  • Y0000718

  • 1,880.19CNY

  • Detail

54699-91-1SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

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

1.2 Other means of identification

Product number -
Other names Lorazepam specified impurity D [EP]

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:54699-91-1 SDS

54699-91-1Upstream product

54699-91-1Relevant academic research and scientific papers

Isolation and identification of a new impurity in lorazepam substance

Cepanec,Mikuldas,Litvic,Vukusic

, p. 857 - 859 (2007/10/03)

A new impurity in lorazepam (1) was UV-detected during the HPLC-analysis of compound 1, batch scale. After the preparative chromatography on silica gel this impurity was isolated. According to IR, NMR, MS and elemental analysis the new impurity was identified as 7-chloro-5-(2-chlorophenyl)-2,3-dioxo-2,3,4,5-tetrahydro-1H-1,4- benzodiazepine (2).

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