199983-19-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 199983-19-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,9,9,8 and 3 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 199983-19:
(8*1)+(7*9)+(6*9)+(5*9)+(4*8)+(3*3)+(2*1)+(1*9)=222
222 % 10 = 2
So 199983-19-2 is a valid CAS Registry Number.