197851-11-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 197851-11-9 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 1 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 197851-11:
(8*1)+(7*9)+(6*7)+(5*8)+(4*5)+(3*1)+(2*1)+(1*1)=179
179 % 10 = 9
So 197851-11-9 is a valid CAS Registry Number.