6752. 2-Octanol

Nomenclature

CAS number: 123-96-6
Secondary caprylic alcohol; methyl hexyl carbinol; hexylmethylcarbinol; 1-methyl-1-heptanol; 2-hydroxyoctane.
C8H18O; mol wt 130.23.
C 73.78%, H 13.93%, O 12.29%.

Description and references

Prepd by heating sodium ricinoleate with caustic soda in a copper vessel and distilling: Adams, Marvel, Org. Synth. 1, 61 (1921); Kenyon, ibid. 6, 68 (1926); Ellis, Reid, J. Am. Chem. Soc. 54, 1678 (1932).

Chemical structure

Derivative

dl-Form.

Properties

Oily, refractive liquid. Aromatic, yet somewhat unpleasant odor, particularly on heating. d420 0.8193. mp -38.6°. bp760 178.5°; bp60 107.4°; bp20 83.3°; bp10 70.0°; bp5 57.6°; bp1.0 32.8°. nD20 1.42025 [Béhal, Bull. Soc. Chim. [4] 25, 482 (1919)]. Flash pt ≈140°F (60°C). Soly in water: 0.096 ml/100 ml. Miscible with alc, ether.

Derivative

d-Form.

Nomenclature

CAS number: 6169-06-8
(2S)-2-Octanol.

Properties

bp20 86°. d420 0.8216. [α]D17 +9.9°.

Derivative

l-Form.

Nomenclature

CAS number: 5978-70-1
(2R)-2-Octanol.

Properties

bp20 86°. [α]D17 -9.9°.

Use

In the manuf of perfumes; in disinfectant soaps. To prevent foaming. Solvent for fats and waxes.