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7446-25-5

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7446-25-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 7446-25-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,4,4 and 6 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 7446-25:
(6*7)+(5*4)+(4*4)+(3*6)+(2*2)+(1*5)=105
105 % 10 = 5
So 7446-25-5 is a valid CAS Registry Number.

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