Product

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

CAS No.：673-84-7

Other grades of this product :

2,6-DIMETHYL-2,4,6-OCTATRIENE Basic information

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%;Allo-ocimene 95%;(4Z)-2,6-Dimethyl-2,4,6-octatriene;Neo-Allo-3,7-Dimethy;2,6-Dimethyl-2,4,6-octatriene,Alloocimene
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
BRN	1719993
CAS DataBase Reference	673-84-7(CAS DataBase Reference)
EPA Substance Registry System	2,4,6-Octatriene, 2,6-dimethyl- (673-84-7)

Safety Information

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

MSDS Information

Provider	Language
SigmaAldrich	English

2,6-DIMETHYL-2,4,6-OCTATRIENE Usage And Synthesis

Chemical Properties	Clear, almost colorless liquid. Polymerizes and oxidizes readily. Combustible.
Uses	Component of varnishes and a variety of polymers; fragrance.
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.
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

Raw materials

1,5,5,6-tetramethylcyclohexa-1,3-diene-->NEO-ALLOOCIMENE, STAB.-->(1S)-(-)-alpha-Pinene-->(+)-Dipentene-->(1R)-(+)-ALPHA-PINENE-->DL-Limonene

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