1004-28-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1004-28-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,0,0 and 4 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1004-28:
(6*1)+(5*0)+(4*0)+(3*4)+(2*2)+(1*8)=30
30 % 10 = 0
So 1004-28-0 is a valid CAS Registry Number.