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847872-05-3

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847872-05-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 847872-05-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,4,7,8,7 and 2 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 847872-05:
(8*8)+(7*4)+(6*7)+(5*8)+(4*7)+(3*2)+(2*0)+(1*5)=213
213 % 10 = 3
So 847872-05-3 is a valid CAS Registry Number.

847872-05-3SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 20, 2017

Revision Date: Aug 20, 2017

1.Identification

1.1 GHS Product identifier

Product name 2,5-difluoro-4-phenylazophenol

1.2 Other means of identification

Product number -
Other names 2,5-difluoro-4-(phenyldiazenyl)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:847872-05-3 SDS

847872-05-3Relevant articles and documents

Activation of chlorine and fluorine by a phenylazo group towards nucleophilic aromatic substitution. Regioselective preparation of polysubstituted anilines

Fryszkowska, Anna,Tilford, Robert W.,Guo, Fengli,Kaszynski, Piotr

, p. 2327 - 2333 (2005)

A phenylazo group was used for selective activation of ortho fluorine and chlorine atoms towards nucleophilic aromatic substitution with the propanethiolate anion. This enabled a regioselective synthesis of three substituted 4-alkoxyanilines. The regioselectivity of substitution was confirmed by comparison of experimental NMR chemical shifts with empirically predicted values. The observed reactivity of the substrates is discussed in the context of the substituent effect.

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