109855-58-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109855-58-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,8,5 and 5 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 109855-58:
(8*1)+(7*0)+(6*9)+(5*8)+(4*5)+(3*5)+(2*5)+(1*8)=155
155 % 10 = 5
So 109855-58-5 is a valid CAS Registry Number.