71819-51-7 Usage
Properties and Applications
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Check Digit Verification of cas no
The CAS Registry Mumber 71819-51-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,8,1 and 9 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 71819-51:
(7*7)+(6*1)+(5*8)+(4*1)+(3*9)+(2*5)+(1*1)=137
137 % 10 = 7
So 71819-51-7 is a valid CAS Registry Number.