73116-39-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 73116-39-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,1,1 and 6 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 73116-39:
(7*7)+(6*3)+(5*1)+(4*1)+(3*6)+(2*3)+(1*9)=109
109 % 10 = 9
So 73116-39-9 is a valid CAS Registry Number.