78649-97-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78649-97-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,6,4 and 9 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 78649-97:
(7*7)+(6*8)+(5*6)+(4*4)+(3*9)+(2*9)+(1*7)=195
195 % 10 = 5
So 78649-97-5 is a valid CAS Registry Number.