4018-25-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4018-25-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,0,1 and 8 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 4018-25:
(6*4)+(5*0)+(4*1)+(3*8)+(2*2)+(1*5)=61
61 % 10 = 1
So 4018-25-1 is a valid CAS Registry Number.