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138016-89-4

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138016-89-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138016-89-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,0,1 and 6 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 138016-89:
(8*1)+(7*3)+(6*8)+(5*0)+(4*1)+(3*6)+(2*8)+(1*9)=124
124 % 10 = 4
So 138016-89-4 is a valid CAS Registry Number.

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