56-28-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 56-28-0 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 5 and 6 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 56-28:
(4*5)+(3*6)+(2*2)+(1*8)=50
50 % 10 = 0
So 56-28-0 is a valid CAS Registry Number.
InChI:InChI=1/C17H15Cl3N2O2/c18-17(19,20)15(24)22-11-21-16(14(22)23,12-7-3-1-4-8-12)13-9-5-2-6-10-13/h1-10,15,21,24H,11H2