89100-79-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89100-79-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,1,0 and 0 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 89100-79:
(7*8)+(6*9)+(5*1)+(4*0)+(3*0)+(2*7)+(1*9)=138
138 % 10 = 8
So 89100-79-8 is a valid CAS Registry Number.