198557-55-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 198557-55-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,8,5,5 and 7 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 198557-55:
(8*1)+(7*9)+(6*8)+(5*5)+(4*5)+(3*7)+(2*5)+(1*5)=200
200 % 10 = 0
So 198557-55-0 is a valid CAS Registry Number.