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65615-66-9

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65615-66-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 65615-66-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,5,6,1 and 5 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 65615-66:
(7*6)+(6*5)+(5*6)+(4*1)+(3*5)+(2*6)+(1*6)=139
139 % 10 = 9
So 65615-66-9 is a valid CAS Registry Number.

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