1,8-Octanediol

1,8-Octanediol
Names
	Preferred IUPAC name Octane-1,8-diol
	Other names 1,8-Octanediol; Octamethylene glycol; 1,8-Dihydroxyoctane
Identifiers
CAS Number	629-41-4 ;
3D model (JSmol)	Interactive image;
Beilstein Reference	1633499
ChEBI	CHEBI:44630 ;
ChemSpider	62628 ;
ECHA InfoCard	100.010.083
EC Number	214-254-7;
Gmelin Reference	1524772
KEGG	C14218 ;
PubChem CID	69420;
UNII	806K32R50Z ;
CompTox Dashboard (EPA)	DTXSID2022416 ;
	InChI InChI=1S/C8H18O2/c9-7-5-3-1-2-4-6-8-10/h9-10H,1-8H2 Key: OEIJHBUUFURJLI-UHFFFAOYSA-N ; InChI=1/C8H18O2/c9-7-5-3-1-2-4-6-8-10/h9-10H,1-8H2 Key: OEIJHBUUFURJLI-UHFFFAOYAW;
	SMILES OCCCCCCCCO;
Properties
Chemical formula	C8H18O2
Molar mass	146.227 g/mol
Appearance	White solid
Melting point	57 to 61 °C (135 to 142 °F; 330 to 334 K)
Boiling point	278.8 °C at 760 mmHg; 172 °C (342 °F; 445 K) at 20 mmHg
Solubility in water	Slightly soluble
Hazards
NFPA 704 (fire diamond)	1 0 0
Flash point	148 °C (298 °F; 421 K)
Safety data sheet (SDS)	GFS Chemicals, Inc. MSDS
Related compounds
Related compounds	1,9-Nonanediol; 1,7-Heptanediol; 1,2-Octanediol
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

1,8-Octanediol, also known as octamethylene glycol, is a diol with the molecular formula HO(CH₂)₈OH, a white solid. It can be produced with high purity by hydrogenation of esters of suberic acid.

1,8-Octanediol, which has a low melting temperature, can be found at high purity for relatively low cost. These characteristics are ideal for a reference material at moderate temperature in the context of solid-liquid Phase-Changing Materials (PCMs).

1,8-Octanediol dihexanoate strongly attracts adult male Parallelostethus attenuatus click beetles, and the pheromone of this species may consist entirely of this compound.