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Check Digit Verification of cas no

The CAS Registry Mumber 731-89-5 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 7,3 and 1 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 731-89:
(5*7)+(4*3)+(3*1)+(2*8)+(1*9)=75
75 % 10 = 5
So 731-89-5 is a valid CAS Registry Number.

731-89-5SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name	N-(2-hydroxyphenyl)-2-nitrobenzamide

1.2 Other means of identification

Product number	-
Other names	2-(2-Nitro-benzamino)-phenol

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:731-89-5 SDS

731-89-5Upstream product

731-89-5Downstream Products

731-89-5Relevant articles and documents

Synthesis of dibenzo[b,f][1,4]oxazepin-11(10H)-ones from 2-nitrobenzoic acids

Samet,Kislyi,Marshalkin,Semenov

, p. 549 - 553 (2007/10/03)

Base-catalyzed intramolecular nucleophilic substitution for the 2-nitro group in 2-hydroxyanilides of 2-nitrobenzoic acids gave dibenzo[b,f][1,4] oxazepin-11(10H)-ones. In particular, 3-nitrodibenzo[b, f][1,4]oxazepin-11(10H)- one was obtained from N-(2-hydroxyphenyl)-2,4-dinitrobenzamide. The nitro group in the product could also be replaced under the action of O- and S-nucleophiles.

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CAS

731-89-5