|
|
| | 2,6-DIMETHYL-2,4,6-OCTATRIENE Basic information | | Aroma |
| Product Name: | 2,6-DIMETHYL-2,4,6-OCTATRIENE | | Synonyms: | TRANS,TRANS-2,6-DIMETHYL-2,4,6-OCTATRIENE;2,6-dimethyl-2,4,6-octatriene,a-form;2,6-DiMethyl-2,4,6-octatriene (Mixture of isoMers);2,6-DiMethyl-2,4,6-octatriene technical grade, 80%;(4Z)-2,6-Dimethyl-2,4,6-octatriene;Neo-Allo-3,7-Dimethy;2,6-Dimethyl-2,4,6-octatriene,Alloocimene;Allocymene
Allo-ocimene | | CAS: | 673-84-7 | | MF: | C10H16 | | MW: | 136.23 | | EINECS: | 211-614-5 | | Product Categories: | Acyclic Monoterpenes;Biochemistry;Terpenes | | Mol File: | 673-84-7.mol |  |
| | 2,6-DIMETHYL-2,4,6-OCTATRIENE Chemical Properties |
| 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 | | Odor | at 100.00 %. sweet floral nut skin peppery herbal tropical | | Odor Type | floral | | BRN | 1719993 | | 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 Codes | Xn | | Risk Statements | 22 | | Safety Statements | 23-24/25 | | RIDADR | 1993 | | WGK Germany | 3 | | RTECS | RH2010000 | | F | 10-23 | | HazardClass | 3.2 | | PackingGroup | III |
| | 2,6-DIMETHYL-2,4,6-OCTATRIENE Usage And Synthesis |
| 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. | | 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.] |
| | 2,6-DIMETHYL-2,4,6-OCTATRIENE Preparation Products And Raw materials |
|