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T73202

Sigma-Aldrich

1,2,3-Trimethylbenzene

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Synonym(s):
Hemellitol
Linear Formula:
C6H3(CH3)3
CAS Number:
Molecular Weight:
120.19
Beilstein/REAXYS Number:
1903410
EC Number:
MDL number:
eCl@ss:
39011402
PubChem Substance ID:
NACRES:
NA.22

vapor density

4.15 (vs air)

Quality Level

vapor pressure

3.4 mmHg ( 37.7 °C)

autoignition temp.

878 °F

refractive index

n20/D 1.513 (lit.)

bp

175-176 °C (lit.)

mp

−25 °C (lit.)

density

0.894 g/mL at 25 °C (lit.)

SMILES string

Cc1cccc(C)c1C

InChI

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

InChI key

FYGHSUNMUKGBRK-UHFFFAOYSA-N

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1 of 4

This Item
132071211419T73601
1,2,3-Trimethylbenzene

T73202

1,2,3-Trimethylbenzene

1,3,5-Triethylbenzene ≥97%

132071

1,3,5-Triethylbenzene

5-Bromo-1,2,4-trimethylbenzene 99%

211419

5-Bromo-1,2,4-trimethylbenzene

1,2,4-Trimethylbenzene 98%

T73601

1,2,4-Trimethylbenzene

mp

−25 °C (lit.)

mp

-

mp

71-73 °C (lit.)

mp

−44 °C (lit.)

density

0.894 g/mL at 25 °C (lit.)

density

0.862 g/mL at 25 °C (lit.)

density

-

density

0.876 g/mL at 20 °C (lit.)

refractive index

n20/D 1.513 (lit.)

refractive index

n20/D 1.495 (lit.)

refractive index

-

refractive index

n20/D 1.504 (lit.)

vapor density

4.15 (vs air)

vapor density

-

vapor density

-

vapor density

4.1 (vs air)

vapor pressure

3.4 mmHg ( 37.7 °C)

vapor pressure

-

vapor pressure

-

vapor pressure

4.5 mmHg ( 37.7 °C)

pictograms

FlameExclamation mark

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

3 - Flammable liquids

wgk_germany

WGK 3

flash_point_f

127.4 °F - closed cup

flash_point_c

53 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter


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Y Tsujimoto et al.
Chemosphere, 39(5), 725-730 (1999-08-17)
The structure was investigated of the mercapturic acid excreted in urine of rats after the i.p. administration of 1,2,3-trimethylbenzene. Of the two regioisomeric mercapturic acids, i.e. N-acetyl-S-(2,3-dimethylbenzyl)-L-cysteine and N-acetyl-S-(2,6-dimethyl-benzyl)-L-cysteine, only the former was isolated by preparative HPLC and identified, by
Application of gas chromatography in conjunction with enrichment of samples on active carbon to determine low concentrations of organic compounds in air. Part I. Aromatic hydrocarbons.
H Swedrowska et al.
Bulletin of the Institute of Maritime and Tropical Medicine in Gdynia, 37(1-2), 103-112 (1986-01-01)
Z Korsak et al.
International journal of occupational medicine and environmental health, 13(3), 223-232 (2000-12-08)
Toxic effects of exposure to 1,2,3-trimethylbenzene (hemimellitene) in the condition of subchronic inhalation experiment were examined. Rats were exposed to vapours of hemimellitene at concentrations of 123 mg/m3, 492 mg/m3 and 1230 mg/m3, 6 h/day, 5 days/week for 3 months.
T Tomas et al.
International journal of occupational medicine and environmental health, 12(1), 73-84 (1999-06-09)
In a series of acute experiments on rats the potential of toluene, mesitylene, hemimellitene and pseudocumene to affect the CNS function was assessed following an analysis of spontaneous and evoked hippocampal and cortical activity. The electrophysiological examinations were performed on
Z Korsak et al.
International journal of occupational medicine and environmental health, 9(4), 341-349 (1996-01-01)
Neurotoxic effects of trimethylbenzene isomers (pseudocumene, mesitylene and hemimellitene) in male rats were investigated in conditions of acute and subchronic inhalation exposure. Rotarod performance and pain sensitivity behaviour were tested in rats exposed to trimethylbenzenes at concentrations of 250-2,000 ppm

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