199983-58-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 199983-58-9 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, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 199983-58:
(8*1)+(7*9)+(6*9)+(5*9)+(4*8)+(3*3)+(2*5)+(1*8)=229
229 % 10 = 9
So 199983-58-9 is a valid CAS Registry Number.