1,8-Naphthyridine

1,8-Naphthyridine
Names
	Preferred IUPAC name 1,8-Naphthyridine
Identifiers
CAS Number	254-60-4;
3D model (JSmol)	Interactive image;
Beilstein Reference	109347
ChEBI	CHEBI:36628;
ChEMBL	ChEMBL261758;
ChemSpider	119846;
ECHA InfoCard	100.201.052
EC Number	675-799-8;
Gmelin Reference	27124
PubChem CID	136069;
UNII	043R04VL4M;
CompTox Dashboard (EPA)	DTXSID40180052;
	InChI InChI=1S/C8H6N2/c1-3-7-4-2-6-10-8(7)9-5-1/h1-6H Key: FLBAYUMRQUHISI-UHFFFAOYSA-N;
	SMILES C1=CC2=C(N=C1)N=CC=C2;
Properties
Chemical formula	C8H6N2
Molar mass	130.150 g·mol−1
Appearance	yellow solid
Density	1.359 g/cm3
Melting point	98–99 °C (208–210 °F; 371–372 K)
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H315, H319, H335
Precautionary statements	P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

1,8-Naphthyridine is an organic compound with the formula C₈H₆N₂. It is the most well-studied of the six isomeric naphthyridines, a subset of diazanaphthalenes with nitrogen in the separate rings. Enoxacin, nalidixic acid, and trovafloxacin are 1,8-naphthyridine derivatives with antibacterial properties related to the fluoroquinolones.