89777-25-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89777-25-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,7,7 and 7 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 89777-25:
(7*8)+(6*9)+(5*7)+(4*7)+(3*7)+(2*2)+(1*5)=203
203 % 10 = 3
So 89777-25-3 is a valid CAS Registry Number.