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277756-65-7

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277756-65-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 277756-65-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,7,7,7,5 and 6 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 277756-65:
(8*2)+(7*7)+(6*7)+(5*7)+(4*5)+(3*6)+(2*6)+(1*5)=197
197 % 10 = 7
So 277756-65-7 is a valid CAS Registry Number.

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