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T73601

Sigma-Aldrich

1,2,4-Trimethylbenzene

98%

Synonym(s):
Pseudocumene
Linear Formula:
C6H3(CH3)3
CAS Number:
Molecular Weight:
120.19
Beilstein:
1903005
EC Number:
MDL number:
eCl@ss:
39011403
PubChem Substance ID:
NACRES:
NA.22

vapor density

4.1 (vs air)

vapor pressure

4.5 mmHg ( 37.7 °C)

assay

98%

autoignition temp.

959 °F

expl. lim.

6.4 %

refractive index

n20/D 1.504 (lit.)

bp

168 °C (lit.)

mp

−44 °C (lit.)

density

0.876 g/mL at 20 °C (lit.)

SMILES string

Cc1ccc(C)c(C)c1

InChI

1S/C9H12/c1-7-4-5-8(2)9(3)6-7/h4-6H,1-3H3

InChI key

GWHJZXXIDMPWGX-UHFFFAOYSA-N

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Related Categories

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Inhalation - Aquatic Chronic 2 - Asp. Tox. 1 - Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

118.4 °F - closed cup

Flash Point(C)

48.0 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

F Solano-Serena et al.
Letters in applied microbiology, 30(1), 19-22 (2000-03-23)
A methodology was devised and was found useful for the selection of populations degrading recalcitrant hydrocarbons. The work was part of a programme aiming at developing knowledge of the intrinsic capacities of autochtonous microflorae of the environment for gasoline biodegradation....
Z Zheng et al.
Applied microbiology and biotechnology, 57(4), 572-578 (2002-01-05)
Laboratory batch experiments were performed with contaminated aquifer sediments and four soluble aromatic components of jet fuel to assess their biodegradation under anaerobic conditions. The biodegradation of four aromatic compounds, toluene, o-xylene, 1,2,4-trimethylbenzene (TMB), and naphthalene, separately or together, was...
Richard H McKee et al.
International journal of toxicology, 29(3), 277-290 (2010-05-08)
This article reports the results of neurobehavioral tests on representative aromatic constituents, specifically C(9) to C(11) species. The testing evaluated effects in several domains including clinical effects, motor activity, functional observations, and visual discrimination performance. Exposures ranging from 600 to...
O Myhre et al.
Toxicology and applied pharmacology, 167(3), 222-230 (2000-09-14)
This study investigates the effects of aliphatic (n-heptane, n-nonane), naphtenic (methylcyclohexane, 1,2,4-trimethylcyclohexane (TMCH)), and aromatic (methylbenzene, 1,2,4-trimethylbenzene (TMB)) hydrocarbons on respiratory burst in human granulocytes. The free radical formation was measured as 2,7-dichlorofluorescein diacetate-amplified (DCF) fluorescence, by electron paramagnetic resonance...
Bruno Bühler et al.
Applied and environmental microbiology, 68(2), 560-568 (2002-02-02)
Xylene monooxygenase of Pseudomonas putida mt-2 catalyzes multistep oxidations of one methyl group of toluene and xylenes. Recombinant Escherichia coli expressing the monooxygenase genes xylM and xylA catalyzes the oxygenation of toluene, pseudocumene, the corresponding alcohols, and the corresponding aldehydes...

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