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77156-53-7

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77156-53-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77156-53-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,1,5 and 6 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 77156-53:
(7*7)+(6*7)+(5*1)+(4*5)+(3*6)+(2*5)+(1*3)=147
147 % 10 = 7
So 77156-53-7 is a valid CAS Registry Number.

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