| Identification | More | [Name]
2,6-DIMETHYL-2,4,6-OCTATRIENE | [CAS]
673-84-7 | [Synonyms]
2,6-DIMETHYL-2,4,6-OCTATRIEN
2,6-DIMETHYL-2,4,6-OCTATRIENE
(4E,6E)-2,6-DIMETHYL-OCTA-2,4,6-TRIENE
ALLOCYMENE
ALLOOCIMENE
TRANS,TRANS-2,6-DIMETHYL-2,4,6-OCTATRIENE
2,6-dimethyl-2,4,6-octatriene,a-form
2,6-dimethyl-octa-2,4,6-triene
4,6-Octatriene,2,6-dimethyl-2
6-octatriene,2,6-dimethyl-4
allo-3,7-dimethyl-1,3,6-octatriene (allo-ocimene)
cis-Allo-ocimene
neo-allo-3,7-dimethyl-1,3,6-octatriene (neo-allo-ocimene)
Ocimene, A110
2,6-DIMETHYL-2,4,6-OCTATRIENE, TECH., 80 %, MIXTURE OF ISOMERS
2,4,6-Octatriene, 2,6-dimethyl-
(4Z)-2,6-Dimethyl-2,4,6-octatriene | [EINECS(EC#)]
211-614-5 | [Molecular Formula]
C10H16 | [MDL Number]
MFCD00009278 | [Molecular Weight]
136.23 | [MOL File]
673-84-7.mol |
| Chemical Properties | Back Directory | [Melting point ]
-25.5°C | [Boiling point ]
73-75 °C/14 mmHg (lit.) | [density ]
0.811 g/mL at 25 °C(lit.)
| [refractive index ]
n20/D 1.542(lit.)
| [Fp ]
156 °F
| [storage temp. ]
2-8°C | [form ]
liquid | [Odor]
at 100.00 %. sweet floral nut skin peppery herbal tropical | [Odor Type]
floral | [BRN ]
1719993 | [Cosmetics Ingredients Functions]
PERFUMING | [InChI]
1S/C10H16/c1-5-10(4)8-6-7-9(2)3/h5-8H,1-4H3/b8-6+,10-5+ | [InChIKey]
GQVMHMFBVWSSPF-SOYUKNQTSA-N | [SMILES]
C\C=C(C)\C=C\C=C(\C)C | [LogP]
4.392 (est) | [CAS DataBase Reference]
673-84-7(CAS DataBase Reference) | [EPA Substance Registry System]
2,4,6-Octatriene, 2,6-dimethyl- (673-84-7) |
| Hazard Information | Back Directory | [Chemical Properties]
Clear, almost colorless liquid. Polymerizes and oxidizes readily. Combustible. | [Uses]
Component of varnishes and a variety of polymers; fragrance. | [Definition]
ChEBI:(4E,6E)-2,6-dimethylocta-2,4,6-triene is an ocimene that consists of octa-2,4,6-triene bearing methyl substituents at positions 2 and 6 (the 4E,6E-isomer). It has a role as a semiochemical. | [General Description]
2,6-Dimethyl-2,4,6-octatriene (allo-ocimene) is one of the major constituents of Fissistigma maclurei Merr. It was identified in Alphanso mangoes using GC-MS. | [Synthesis]
Ocimene is produced by the flash pyrolysis or
photochemical isomerization of a-pinene. | [Solubility in organics]
Colorless mobile liquid. Soluble in alcohol (when fresh and unpolymerized), poorly soluble when polymerized. Insoluble in water. Miscible with essential oils and perfume chemicals. | [Purification Methods]
Fractionally distil allocimene through an efficient column and repeatedly distil it at 15mm through a long column of glass helices, with a final distillation from sodium under nitrogen. It should be stabilised with ca 0.1% of hydroquinone. UV: max nm( 1cm-1) 290 (32 500), 279 (41 900) and 278 (42,870). [Alder et al. Justus Liebigs Ann Chem 609 1 1957, O’Connor & Goldblatt Anal Chem 26 1726 1954, Beilstein 1 IV 1106.] |
| Questions And Answer | Back Directory | [Aroma]
Diffusive, fresh-gassy, herbaceous odor. The gassy notes are more predominant in
poorer grades of Allo-ocimene, almost imperceptible in good grade matl. Useful in low-cost fragrances for industrial purposes, and in general as a lifting topnote, modifier for Limonene, etc. cheaper than Ocimene. |
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