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Key Documents

T73202

Sigma-Aldrich

1,2,3-Trimethylbenzene

Synonym(s):

Hemellitol

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About This Item

Linear Formula:
C6H3(CH3)3
CAS Number:
Molecular Weight:
120.19
Beilstein:
1903410
EC Number:
MDL number:
UNSPSC Code:
12352100
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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Pictograms

FlameExclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

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

Target Organs

Respiratory system

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

127.4 °F - closed cup

Flash Point(C)

53 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Customers Also Viewed

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
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
J Järnberg et al.
Toxicology and applied pharmacology, 140(2), 281-288 (1996-10-01)
The objective of this study was to determine the uptake and disposition of inhaled trimethylbenzenes (TMBs) in man. The toxicokinetics were studied in 10 male, healthy volunteers exposed to TMB vapor in an exposure chamber for 2 hr during a
D Wiaderna et al.
International journal of occupational medicine and environmental health, 11(4), 319-334 (1999-02-24)
Trimethylbenzene isomers (TMBs): 1,2,4-TMB (pseudocumene--PS), 1,2,3-TMB (hemimellitene--HM) and 1,3,5-TMB (mesitylene--MES) are important constituents of solvent mixtures. In the US, the adopted TLV-TWA value for TMBs is 125 mg/m3 or 25 ppm (ACGIH 1996). Recent experiments at our laboratory have revealed
Kinetics of solvents release from paint coatings. I. Paint coating hardened at +20 degrees C temperature.
R Wiglusz et al.
Bulletin of the Institute of Maritime and Tropical Medicine in Gdynia, 37(3-4), 247-253 (1986-01-01)

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