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213987-71-4

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213987-71-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 213987-71-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,3,9,8 and 7 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 213987-71:
(8*2)+(7*1)+(6*3)+(5*9)+(4*8)+(3*7)+(2*7)+(1*1)=154
154 % 10 = 4
So 213987-71-4 is a valid CAS Registry Number.

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