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72990-45-5

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72990-45-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 72990-45-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,9,9 and 0 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 72990-45:
(7*7)+(6*2)+(5*9)+(4*9)+(3*0)+(2*4)+(1*5)=155
155 % 10 = 5
So 72990-45-5 is a valid CAS Registry Number.

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