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217825-79-1

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217825-79-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 217825-79-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,7,8,2 and 5 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 217825-79:
(8*2)+(7*1)+(6*7)+(5*8)+(4*2)+(3*5)+(2*7)+(1*9)=151
151 % 10 = 1
So 217825-79-1 is a valid CAS Registry Number.

217825-79-1Downstream Products

217825-79-1Relevant articles and documents

Method of making chlorofluoroethers

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Example 18, (2010/01/31)

A method is provided for preparation of chlorofluoroethers ClCF2CFClOR8f and Cl2CFCFClOR8f by direct fluorination of Cl2CHCH2OR8 and Cl3CCH2OR8, respectively, wherein R8 is a C1-C20 alkyl-or acyl-containing group optionally up to 5 ether oxygen atoms and optionally substituted by functional groups and R81, is the corresponding perfluoroalkyl or perfluoracyl-containing group.

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