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311787-04-9

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311787-04-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 311787-04-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,1,1,7,8 and 7 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 311787-04:
(8*3)+(7*1)+(6*1)+(5*7)+(4*8)+(3*7)+(2*0)+(1*4)=129
129 % 10 = 9
So 311787-04-9 is a valid CAS Registry Number.

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