104165-81-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 104165-81-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,1,6 and 5 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 104165-81:
(8*1)+(7*0)+(6*4)+(5*1)+(4*6)+(3*5)+(2*8)+(1*1)=93
93 % 10 = 3
So 104165-81-3 is a valid CAS Registry Number.