321864-89-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 321864-89-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,2,1,8,6 and 4 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 321864-89:
(8*3)+(7*2)+(6*1)+(5*8)+(4*6)+(3*4)+(2*8)+(1*9)=145
145 % 10 = 5
So 321864-89-5 is a valid CAS Registry Number.