191805-26-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 191805-26-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,1,8,0 and 5 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 191805-26:
(8*1)+(7*9)+(6*1)+(5*8)+(4*0)+(3*5)+(2*2)+(1*6)=142
142 % 10 = 2
So 191805-26-2 is a valid CAS Registry Number.