104815-66-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 104815-66-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,8,1 and 5 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 104815-66:
(8*1)+(7*0)+(6*4)+(5*8)+(4*1)+(3*5)+(2*6)+(1*6)=109
109 % 10 = 9
So 104815-66-9 is a valid CAS Registry Number.