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123938-79-4

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123938-79-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 123938-79-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,9,3 and 8 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 123938-79:
(8*1)+(7*2)+(6*3)+(5*9)+(4*3)+(3*8)+(2*7)+(1*9)=144
144 % 10 = 4
So 123938-79-4 is a valid CAS Registry Number.

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