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257955-88-7

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257955-88-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 257955-88-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,7,9,5 and 5 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 257955-88:
(8*2)+(7*5)+(6*7)+(5*9)+(4*5)+(3*5)+(2*8)+(1*8)=197
197 % 10 = 7
So 257955-88-7 is a valid CAS Registry Number.

257955-88-7Downstream Products

257955-88-7Relevant articles and documents

Process for preparing dithioesters

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Page 5, (2010/02/08)

The present invention relates to a process for preparing dithioesters in which a dithiocarboxylic acid and/or a dithiocarboxylic salt is reacted with a vinyl compound and/or an alkyl compound which includes a leaving group, the reaction being carried out in a biphasic system in which one of the phases comprises water and the weight ratio of the aqueous phase to the organic phase lies in the range from 95:5 to 5:95.

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