Octane-1,8-diol

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Octane-1,8-diol
Other names 1,8-Octanediol Octamethylene glycol 1,8-Dihydroxyoctane
Identifiers
CAS number	629-41-4
PubChem	69420
EC number	214-254-7
Jmol-3D images	Image 1
SMILES OCCCCCCCCO
Properties
Molecular formula	C8H18O2
Molar mass	146.23 g mol−1
Appearance	White solid
Melting point	57-61 °C, 330-334 K, 135-142 °F
Boiling point	172 °C (at 20 mmHg)
Hazards
MSDS	GFS Chemicals, Inc. MSDS
S-phrases	S24/25
NFPA 704	0 1 0
Flash point	148 °C
Y (verify) (what is: Y/N?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Octane-1,8-diol, also known as octamethylene glycol, is a diol with the molecular formula HO(CH₂)₈OH. Octane-1,8-diol is a white crystalline solid at room temperature and pressure.

Octane-1,8-diol is used as a monomer in the synthesis of some polymers such as polyesters and polyurethanes. It has bacteriostatic and bacteriocidal properties which make it a useful preservative. It is also used in coating materials, slurries, paper mills and water circulation systems for the effective preservation against bacteria and fungi.^[1]

As with other fatty alcohols, octane-1,8-diol is used in cosmetics as an emollient and humectant.

See also

• Ethylene glycol

References