105106-80-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 105106-80-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,5,1,0 and 6 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 105106-80:
(8*1)+(7*0)+(6*5)+(5*1)+(4*0)+(3*6)+(2*8)+(1*0)=77
77 % 10 = 7
So 105106-80-7 is a valid CAS Registry Number.