199922-40-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 199922-40-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,9,9,2 and 2 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 199922-40:
(8*1)+(7*9)+(6*9)+(5*9)+(4*2)+(3*2)+(2*4)+(1*0)=192
192 % 10 = 2
So 199922-40-2 is a valid CAS Registry Number.