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7-CHLORO-2,3-DIHYDRO-1,5-BENZOTHIAZEPIN-4(5H)-ONE is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

75620-23-4

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75620-23-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 75620-23-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,6,2 and 0 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 75620-23:
(7*7)+(6*5)+(5*6)+(4*2)+(3*0)+(2*2)+(1*3)=124
124 % 10 = 4
So 75620-23-4 is a valid CAS Registry Number.

75620-23-4Relevant articles and documents

Process for preparing 3-fluoro-4,6-dichlorotoluene

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, (2008/06/13)

3-Fluoro-4,6-dichlorotoluene is prepared with reduced formation of 3-fluoro-2,6-dichlorotoluene by chlorinating 3-fluorotoluene in the presence of a catalyst system to give a mixture containing 3-fluoro-6-chlorotoluene and 3-fluoro-4-chlorotoluene and chlorinating this in the presence of another catalyst system to give 3-fluoro-4,6-dichlorotoluene.

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