121043-40-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121043-40-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,0,4 and 3 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 121043-40:
(8*1)+(7*2)+(6*1)+(5*0)+(4*4)+(3*3)+(2*4)+(1*0)=61
61 % 10 = 1
So 121043-40-1 is a valid CAS Registry Number.