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7696-53-9

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7696-53-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 7696-53-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,6,9 and 6 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 7696-53:
(6*7)+(5*6)+(4*9)+(3*6)+(2*5)+(1*3)=139
139 % 10 = 9
So 7696-53-9 is a valid CAS Registry Number.

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