105105-04-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 105105-04-2 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 5 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 105105-04:
(8*1)+(7*0)+(6*5)+(5*1)+(4*0)+(3*5)+(2*0)+(1*4)=62
62 % 10 = 2
So 105105-04-2 is a valid CAS Registry Number.