78686-49-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78686-49-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,6,8 and 6 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 78686-49:
(7*7)+(6*8)+(5*6)+(4*8)+(3*6)+(2*4)+(1*9)=194
194 % 10 = 4
So 78686-49-4 is a valid CAS Registry Number.