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871707-78-7

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871707-78-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 871707-78-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,1,7,0 and 7 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 871707-78:
(8*8)+(7*7)+(6*1)+(5*7)+(4*0)+(3*7)+(2*7)+(1*8)=197
197 % 10 = 7
So 871707-78-7 is a valid CAS Registry Number.

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