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74749-28-3

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74749-28-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74749-28-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,7,4 and 9 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 74749-28:
(7*7)+(6*4)+(5*7)+(4*4)+(3*9)+(2*2)+(1*8)=163
163 % 10 = 3
So 74749-28-3 is a valid CAS Registry Number.

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