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1,2,4,5-Tetramethylbenzene

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1,2,4,5-Tetramethylbenzene Basic information

Product Name:
1,2,4,5-Tetramethylbenzene
Synonyms:
  • 1,2,4,5-tetramethyl-benzen
  • 2,5-dimethyl-p-xylen
  • 1,2,4,5-TETRAMETHYLBENZENE (DURENE)
  • 1,2,4,5-Tetramethylbenzene, 97+%
  • 1,2,4,5-Tetramethylbenzene Zone Refined (number of passes:23)
  • Durene,1,2,4,5-Tetramethylbenzene
  • Durene 5g [95-93-2]
  • 1,2,4,5-Tetramethylbenzene,1,2,4,5-Tetramethylbenzene, Durene
CAS:
95-93-2
MF:
C10H14
MW:
134.22
EINECS:
202-465-7
Product Categories:
  • Arenes
  • Building Blocks
  • Highly Purified Reagents
  • Other Categories
  • Chemical Synthesis
  • Organic Building Blocks
  • Zone Refined Products
Mol File:
95-93-2.mol
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1,2,4,5-Tetramethylbenzene Chemical Properties

Melting point:
78 °C
Boiling point:
196-197 °C
Density 
0.838 g/mL at 25 °C(lit.)
vapor density 
4.6 (vs air)
vapor pressure 
160 mm Hg ( 140 °C)
refractive index 
1.5093
Flash point:
165 °F
storage temp. 
Flammables area
solubility 
0.00348g/l
Specific Gravity
0.838
color 
White to Almost white
Odor
rancid sweet
Water Solubility 
insoluble
Merck 
14,3468
BRN 
1903393
Henry's Law Constant
2.49 at 25 °C (approximate - calculated from water solubility and vapor pressure)
LogP
4.000
CAS DataBase Reference
95-93-2(CAS DataBase Reference)
NIST Chemistry Reference
Benzene, 1,2,4,5-tetramethyl-(95-93-2)
EPA Substance Registry System
1,2,4,5-Tetramethylbenzene (95-93-2)
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Safety Information

Hazard Codes 
F,N
Risk Statements 
11-53-50
Safety Statements 
16-61
RIDADR 
UN 1325 4.1/PG 2
WGK Germany 
1
RTECS 
DC0500000
TSCA 
Yes
HazardClass 
4.1
PackingGroup 
III
HS Code 
29029080
Toxicity
LD50 orally in Rabbit: 6700 mg/kg

MSDS

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1,2,4,5-Tetramethylbenzene Usage And Synthesis

Chemical Properties

white to brown semi-transparent crystals

Physical properties

Colorless crystals or scales with a camphor-like odor

Uses

Plasticizers; polymers; fibers; organic synthesis.

Uses

1,2,4,5-Tetramethylbenzene is used in method for reducing odor in room in remodeling work by removing causative substances.

Definition

ChEBI: Durene is a tetramethylbenzene carrying methyl groups at positions 1, 2, 4 and 5.

General Description

Colorless crystals with a camphor-like odor.

Air & Water Reactions

Insoluble in water.

Reactivity Profile

Vigorous reactions, sometimes amounting to explosions, can result from the contact between aromatic hydrocarbons, such as 1,2,4,5-Tetramethylbenzene, and strong oxidizing agents. They can react exothermically with bases and with diazo compounds. Substitution at the benzene nucleus occurs by halogenation (acid catalyst), nitration, sulfonation, and the Friedel-Crafts reaction.

Purification Methods

Chromatograph durene on alumina, and recrystallise it from aqueous EtOH or *benzene. Zone-refining removes duroaldehydes. Dry it under vacuum. [Yamauchi et al. J Phys Chem 89 4804 1985.] It has also been sublimed in vacuo [Johnston et al. J Am Chem Soc 109 1291 1987]. [Beilstein 5 H 431, 5 I 207, 5 II 329, 5 III 979, 5 IV 1076.]

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