717813-39-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 717813-39-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,1,7,8,1 and 3 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 717813-39:
(8*7)+(7*1)+(6*7)+(5*8)+(4*1)+(3*3)+(2*3)+(1*9)=173
173 % 10 = 3
So 717813-39-3 is a valid CAS Registry Number.