198955-22-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 198955-22-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,8,9,5 and 5 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 198955-22:
(8*1)+(7*9)+(6*8)+(5*9)+(4*5)+(3*5)+(2*2)+(1*2)=205
205 % 10 = 5
So 198955-22-5 is a valid CAS Registry Number.