Detail of "10482-56-1"

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CAS Number:
10482-56-1
Name:
3-Cyclohexene-1-methanol,α,α,4-trimethyl-, (1S)-
Superlist Name:
(-)-alpha-Terpineol
Molecular Structure:
Formula:
C₁₀H₁₈O
Molecular Weight:
154.25
Synonyms:
3-Cyclohexene-1-methanol,α,α,4-trimethyl-, (S)-;p-Menth-1-en-8-ol, (S)-(-)-(8CI);(S)-(-)-Terpineol;(S)-(-)-α-Terpineol;(S)-α,α,4-Trimethyl-3-cyclohexene-1-methanol;(S)-a-Terpineol;l-α-Terpineol;α-Terpineol, (-)-;
EINECS:
233-986-8
Density:
0.93 g/cm³
Melting Point:
31-35 °C(lit.)
Boiling Point:
217.5 °C at 760 mmHg
Flash Point:
89.4 °C
Hazard Symbols:
Xi
Risk Codes:
36/37/38
Safety:
26-36-36/37/39 Details

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Essential oil of Artemisia halophila: Essential oil of Artemisia halophila. Sharipova, F. S.; El'chibekova, A. A.; Nedel'ko, E. S.; Averina, V. A. (Inst. Khim. Nauk, Alma-Ata, USSR). Khim. Prir. Soedin., (2), 251 (Russian) 1984. CODEN: KPSUAR. ISSN: 0023-1150. DOCUMENT TYPE: Journal CA Section: 62 (Essential Oils and Cosmetics) Section cross-reference(s): 63 A. halophila Oil contained a-pinene [80-56-8] (0.46), camphene [79-92-5] (2.48), b-pinene [127-91-3] (0.6), sabinene [3387-41-5] (0.7), myrcene [123-35-3] (1.86), limonene [5989-27-5] (0.37), cineole [470-82-6] (30.7), g-terpinene [99-85-4] (0.8), p-cymene [99-87-6] (2.3), artemisia ketone [546-49-6] (5.86), b-thujone [471-15-8] (7.45), a-thujone [546-80-5] (6.11), artemisia alc. [29887-38-5] (1.58), camphor [464-49-3] (24.84), 4-terpinenol [562-74-3] (4.09), bornyl acetate [76-49-3] (2.6), isobornyl acetate [125-12-2] (2.1), isoborneol [124-76-5] (0.65), borneol [507-70-0] (1.64), and a-terpeniol [10482-56-1] (2.32%). The oil has antimicrobial activity and might be recommended for pharmaceutical use.

Preparation of terpineol by the hydration of pinene: Preparation of terpineol by the hydration of pinene. Bibicheva, A. I.; Golovina, Z. P.; Maloletneva, S. I.; Neofitova, L. A.; Kostina, E. I.; Timonin, S. A. (VNIISNDV, USSR). Maslo-Zhir. Prom-st., (11), 24-5 (Russian) 1984. CODEN: MZPYAE. ISSN: 0025-4649. DOCUMENT TYPE: Journal CA Section: 62 (Essential Oils and Cosmetics) Section cross-reference(s): 30 A method for the prepn. of terpineol [8000-41-7] by the hydration of a-pinene [80-56-8] in aq. Me2CO and H2SO4 medium is described. To an aq. mixt. of 12-18% H2SO4 and 50-l0% Me2CO was added a-pinene and the reaction carried out at 50-55° in 0.5-3 h and the d. of the product detd. At a d. of 0.887 g/cm3, the mass was allowed to stand, the water phase removed and then NaOH soln. added (to pH 8) to the org. phase and the acetone removed. Crude terpineol thus obtained contained a mixt. of terpineols and hydrocarbons, a- [10482-56-1] 1-26%, b- [138-87-4] 1-2, and g-terpineol [586-81-2] 2-4, borneol [507-70-0], isoborneol [124-76-5] 2-3, terpinen-1-ol [586-82-3] 3-4, and terpinolene [586-62-9] 12-14. The effect of these impurities on the perfume properties of terpineol were also studied. The presence of large quantities of terpinolene and terpinen-1-ol affected the odorous properties of terpineol and hence must be removed from the product.