23471-89-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 23471-89-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,4,7 and 1 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 23471-89:
(7*2)+(6*3)+(5*4)+(4*7)+(3*1)+(2*8)+(1*9)=108
108 % 10 = 8
So 23471-89-8 is a valid CAS Registry Number.