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45935

Supelco

1,2,3-Trimethylbenzene

analytical standard

Synonym(s):

Hemellitol

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About This Item

Linear Formula:
C6H3(CH3)3
CAS Number:
526-73-8
Molecular Weight:
120.19
Beilstein:
1903410
EC Number:
208-394-8
MDL number:
MFCD00008520
UNSPSC Code:
41116107
eCl@ss:
39011402
PubChem Substance ID:
329757018
NACRES:
NA.24

grade

analytical standard

Quality Level

100

vapor density

4.15 (vs air)

vapor pressure

3.4 mmHg ( 37.7 °C)

autoignition temp.

878 °F

shelf life

limited shelf life, expiry date on the label

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

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.)

application(s)

environmental

format

neat

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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Application

Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

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Find a digital Reference Material for this product available on our online platform ChemisTwin® for NMR. You can use this digital equivalent on ChemisTwin® for your sample identity confirmation and compound quantification (with digital external standard). An NMR spectrum of this substance can be viewed and an online comparison against your sample can be performed with a few mouseclicks. Learn more here and start your free trial.

Pictograms

FlameExclamation mark
GHS02,GHS07

Signal Word

Warning

Hazard Statements

H226,H315,H319,H335

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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

PRTR

Class I Designated Chemical Substances

FSL

Group 4: Flammable liquids
Type 2 petroleums
Hazardous rank III
Water insoluble liquid

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

45935-VAR:
45935-1EA:
45935-BULK:
45935-250MG:4548173955773

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Certificates of Analysis (COA)

Lot/Batch Number
BCCF7088
BCBT0958
SZBC321XV
SZB9153XV
SZE9153X

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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
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
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.
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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