89776-89-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89776-89-6 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 6 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 89776-89:
(7*8)+(6*9)+(5*7)+(4*7)+(3*6)+(2*8)+(1*9)=216
216 % 10 = 6
So 89776-89-6 is a valid CAS Registry Number.