121898-90-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121898-90-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,8,9 and 8 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 121898-90:
(8*1)+(7*2)+(6*1)+(5*8)+(4*9)+(3*8)+(2*9)+(1*0)=146
146 % 10 = 6
So 121898-90-6 is a valid CAS Registry Number.