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773139-56-3

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773139-56-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 773139-56-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,7,3,1,3 and 9 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 773139-56:
(8*7)+(7*7)+(6*3)+(5*1)+(4*3)+(3*9)+(2*5)+(1*6)=183
183 % 10 = 3
So 773139-56-3 is a valid CAS Registry Number.

773139-56-3SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name Ethyl 5-chloro-2-fluorobenzoate

1.2 Other means of identification

Product number -
Other names -

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:773139-56-3 SDS

773139-56-3Downstream Products

773139-56-3Relevant academic research and scientific papers

Preparation method of ethyl 5-chloro-2-fluoro-3-hydroxybenzoate

-

Paragraph 0024-0026; 0031-0033; 0036-0038, (2021/11/03)

The invention discloses a preparation method of ethyl 5-chloro-2-fluoro-3-hydroxybenzoate. The preparation method comprises the following steps of: (1) carrying out an esterification reaction on a compound 1 to obtain a compound 2; (2) carrying out a hydrocarbon boronation reaction on the compound 2 under the catalytic action of iridium to obtain a compound 3; and (3) carrying out a boric acid ester oxidation reaction on the compound 3 to obtain ethyl 5-chloro-2-fluoro-3-hydroxybenzoate. The method has the advantages of easily available raw materials, simple operation and high yield, and a single-target configuration product is obtained.

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