104931-56-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 104931-56-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,9,3 and 1 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 104931-56:
(8*1)+(7*0)+(6*4)+(5*9)+(4*3)+(3*1)+(2*5)+(1*6)=108
108 % 10 = 8
So 104931-56-8 is a valid CAS Registry Number.