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42422-07-1

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42422-07-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 42422-07-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,4,2 and 2 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 42422-07:
(7*4)+(6*2)+(5*4)+(4*2)+(3*2)+(2*0)+(1*7)=81
81 % 10 = 1
So 42422-07-1 is a valid CAS Registry Number.

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