197855-39-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 197855-39-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,7,8,5 and 5 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 197855-39:
(8*1)+(7*9)+(6*7)+(5*8)+(4*5)+(3*5)+(2*3)+(1*9)=203
203 % 10 = 3
So 197855-39-3 is a valid CAS Registry Number.