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918947-03-2

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918947-03-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 918947-03-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,8,9,4 and 7 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 918947-03:
(8*9)+(7*1)+(6*8)+(5*9)+(4*4)+(3*7)+(2*0)+(1*3)=212
212 % 10 = 2
So 918947-03-2 is a valid CAS Registry Number.

918947-03-2Upstream product

918947-03-2Downstream Products

918947-03-2Relevant articles and documents

PREPARATION OF DECAHALODIPHENYL OXIDE

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Page/Page column 12, (2008/06/13)

This invention provides a process of preparing reaction-derived decahalodiphenyl oxide of high purity. The process comprises cofeeding separate feeds of (a) diphenyl oxide and/or partially brominated diphenyl oxide and (b) bromine chloride, bromine chloride and bromine, or bromine chloride and chlorine to a refluxing reaction mixture comprising bromine and at least one Lewis acid bromination catalyst so that high purity decahalodiphenyl oxide is formed.

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