2,6-DIMETHYL-2,4,6-OCTATRIENE Property

Melting point:

-35.4°C

Boiling point:

73-75 °C14 mm Hg(lit.)

Density 

0.811 g/mL at 25 °C(lit.)

refractive index 

n20/D 1.542(lit.)

Flash point:

156 °F

Odor

at 100.00 %. terpene sweet fresh floral

Odor Type

terpenic

LogP

4.392 (est)

EPA Substance Registry System

2,4,6-Octatriene, 2,6-dimethyl-, (4E,6E)- (3016-19-1)

Safety

Hazard Codes 

Xn

Risk Statements 

22

Safety Statements 

23-24/25

WGK Germany 

3

RTECS 

RH2010000

F 

10-23

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H302Harmful if swallowed

H304May be fatal if swallowed and enters airways

H315Causes skin irritation

H319Causes serious eye irritation

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P321Specific treatment (see … on this label).

P330Rinse mouth.

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P362Take off contaminated clothing and wash before reuse.

P501Dispose of contents/container to..…

2,6-DIMETHYL-2,4,6-OCTATRIENE Chemical Properties,Usage,Production

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.

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.]