121290-13-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121290-13-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,2,9 and 0 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 121290-13:
(8*1)+(7*2)+(6*1)+(5*2)+(4*9)+(3*0)+(2*1)+(1*3)=79
79 % 10 = 9
So 121290-13-9 is a valid CAS Registry Number.