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89643-23-2

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89643-23-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 89643-23-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,6,4 and 3 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 89643-23:
(7*8)+(6*9)+(5*6)+(4*4)+(3*3)+(2*2)+(1*3)=172
172 % 10 = 2
So 89643-23-2 is a valid CAS Registry Number.

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