199180-81-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 199180-81-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,9,1,8 and 0 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 199180-81:
(8*1)+(7*9)+(6*9)+(5*1)+(4*8)+(3*0)+(2*8)+(1*1)=179
179 % 10 = 9
So 199180-81-9 is a valid CAS Registry Number.