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51581-03-4

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51581-03-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 51581-03-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,5,8 and 1 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 51581-03:
(7*5)+(6*1)+(5*5)+(4*8)+(3*1)+(2*0)+(1*3)=104
104 % 10 = 4
So 51581-03-4 is a valid CAS Registry Number.

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