197901-55-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 197901-55-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,7,9,0 and 1 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 197901-55:
(8*1)+(7*9)+(6*7)+(5*9)+(4*0)+(3*1)+(2*5)+(1*5)=176
176 % 10 = 6
So 197901-55-6 is a valid CAS Registry Number.