5091-04-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5091-04-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,0,9 and 1 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 5091-04:
(6*5)+(5*0)+(4*9)+(3*1)+(2*0)+(1*4)=73
73 % 10 = 3
So 5091-04-3 is a valid CAS Registry Number.