89641-11-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89641-11-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,6,4 and 1 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 89641-11:
(7*8)+(6*9)+(5*6)+(4*4)+(3*1)+(2*1)+(1*1)=162
162 % 10 = 2
So 89641-11-2 is a valid CAS Registry Number.