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7699-40-3

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7699-40-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 7699-40-3 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 9 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 7699-40:
(6*7)+(5*6)+(4*9)+(3*9)+(2*4)+(1*0)=143
143 % 10 = 3
So 7699-40-3 is a valid CAS Registry Number.

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