105040-05-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 105040-05-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,5,0,4 and 0 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 105040-05:
(8*1)+(7*0)+(6*5)+(5*0)+(4*4)+(3*0)+(2*0)+(1*5)=59
59 % 10 = 9
So 105040-05-9 is a valid CAS Registry Number.