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667904-74-7

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667904-74-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 667904-74-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,7,9,0 and 4 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 667904-74:
(8*6)+(7*6)+(6*7)+(5*9)+(4*0)+(3*4)+(2*7)+(1*4)=207
207 % 10 = 7
So 667904-74-7 is a valid CAS Registry Number.

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