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27943-30-2

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27943-30-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 27943-30-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,7,9,4 and 3 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 27943-30:
(7*2)+(6*7)+(5*9)+(4*4)+(3*3)+(2*3)+(1*0)=132
132 % 10 = 2
So 27943-30-2 is a valid CAS Registry Number.

27943-30-2Upstream product

27943-30-2Relevant 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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