197500-55-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 197500-55-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,7,5,0 and 0 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 197500-55:
(8*1)+(7*9)+(6*7)+(5*5)+(4*0)+(3*0)+(2*5)+(1*5)=153
153 % 10 = 3
So 197500-55-3 is a valid CAS Registry Number.