34719-16-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 34719-16-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,4,7,1 and 9 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 34719-16:
(7*3)+(6*4)+(5*7)+(4*1)+(3*9)+(2*1)+(1*6)=119
119 % 10 = 9
So 34719-16-9 is a valid CAS Registry Number.