121919-40-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121919-40-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,9,1 and 9 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 121919-40:
(8*1)+(7*2)+(6*1)+(5*9)+(4*1)+(3*9)+(2*4)+(1*0)=112
112 % 10 = 2
So 121919-40-2 is a valid CAS Registry Number.