916197-65-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 916197-65-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,6,1,9 and 7 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 916197-65:
(8*9)+(7*1)+(6*6)+(5*1)+(4*9)+(3*7)+(2*6)+(1*5)=194
194 % 10 = 4
So 916197-65-4 is a valid CAS Registry Number.