69104-89-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 69104-89-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,1,0 and 4 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 69104-89:
(7*6)+(6*9)+(5*1)+(4*0)+(3*4)+(2*8)+(1*9)=138
138 % 10 = 8
So 69104-89-8 is a valid CAS Registry Number.