77817-62-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77817-62-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,8,1 and 7 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 77817-62:
(7*7)+(6*7)+(5*8)+(4*1)+(3*7)+(2*6)+(1*2)=170
170 % 10 = 0
So 77817-62-0 is a valid CAS Registry Number.