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256521-49-0

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256521-49-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 256521-49-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,6,5,2 and 1 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 256521-49:
(8*2)+(7*5)+(6*6)+(5*5)+(4*2)+(3*1)+(2*4)+(1*9)=140
140 % 10 = 0
So 256521-49-0 is a valid CAS Registry Number.

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