108920-05-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 108920-05-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,8,9,2 and 0 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 108920-05:
(8*1)+(7*0)+(6*8)+(5*9)+(4*2)+(3*0)+(2*0)+(1*5)=114
114 % 10 = 4
So 108920-05-4 is a valid CAS Registry Number.