105515-07-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 105515-07-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,5,5,1 and 5 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 105515-07:
(8*1)+(7*0)+(6*5)+(5*5)+(4*1)+(3*5)+(2*0)+(1*7)=89
89 % 10 = 9
So 105515-07-9 is a valid CAS Registry Number.