77897-78-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77897-78-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,8,9 and 7 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 77897-78:
(7*7)+(6*7)+(5*8)+(4*9)+(3*7)+(2*7)+(1*8)=210
210 % 10 = 0
So 77897-78-0 is a valid CAS Registry Number.