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219979-42-7

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219979-42-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 219979-42-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,9,9,7 and 9 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 219979-42:
(8*2)+(7*1)+(6*9)+(5*9)+(4*7)+(3*9)+(2*4)+(1*2)=187
187 % 10 = 7
So 219979-42-7 is a valid CAS Registry Number.

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