23897-61-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 23897-61-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,8,9 and 7 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 23897-61:
(7*2)+(6*3)+(5*8)+(4*9)+(3*7)+(2*6)+(1*1)=142
142 % 10 = 2
So 23897-61-2 is a valid CAS Registry Number.