1234580-73-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1234580-73-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,4,5,8 and 0 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1234580-73:
(9*1)+(8*2)+(7*3)+(6*4)+(5*5)+(4*8)+(3*0)+(2*7)+(1*3)=144
144 % 10 = 4
So 1234580-73-4 is a valid CAS Registry Number.