199107-04-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 199107-04-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,9,1,0 and 7 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 199107-04:
(8*1)+(7*9)+(6*9)+(5*1)+(4*0)+(3*7)+(2*0)+(1*4)=155
155 % 10 = 5
So 199107-04-5 is a valid CAS Registry Number.