10250. Octyldodecanol

Nomenclature

CAS number: 5333-42-6
2-Octyl-1-dodecanol; Eutanol G (Cognis).
C20H42O; mol wt 298.55.
C 80.46%, H 14.18%, O 5.36%.

Description and references

Lipophilic long-chain saturated fatty alcohol. Prepn: P. Mastagli, Ann. Chim. (Paris) 10, 281 (1938); T. Matsu-ura et al., J. Org. Chem. 71, 8306 (2006) DOI PubMed. Safety assessment: J. Am. Coll. Toxicol. 4, 1 (1985). Total and partial cohesion parameters: A. Munafo et al., J. Pharm. Sci. 77, 169 (1988) DOI PubMed. Sensory properties: M. E. Parente et al., J. Cosmet. Sci. 56, 175 (2005) PubMed. Lipophilic character: C. J. Mbah et al., Pharmazie 62, 351 (2007) PubMed.

Chemical structure

Properties

Clear, slightly yellow, odorless oil. bp15 215°. d419 0.8463. d25 0.8354. nD19 1.4545. Sol in ethanol, chloroform, ether. Insol in water. Molar volume = 357.40 ±0.018 cm3/mol. Dielectric constant, ε 2.64 ±0.11. Dipole moment, μ 1.24 ±0.105 D.

Use

In cosmetics as emulsifying and opacifying agent, carrier for oil soluble ingredients, coupling agent for waxes, and superfatting agent in shampoos and soaps.