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5401-64-9

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5401-64-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5401-64-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,4,0 and 1 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 5401-64:
(6*5)+(5*4)+(4*0)+(3*1)+(2*6)+(1*4)=69
69 % 10 = 9
So 5401-64-9 is a valid CAS Registry Number.

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