1,2,3-Trimethylbenzene

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Names

[ CAS No. ]:
526-73-8

[ Name ]:
1,2,3-Trimethylbenzene

[Synonym ]:
Trimethyl benzene
benzene, trimethyl-
hemimelliten
trimethylarsenic dibromide
EINECS 208-394-8
Hemimellitene
trimethylbenzene
Benzene, 1,2,3-trimethyl-
trimethylbenzol, 1,2,3-
Arsonium,bromotrimethyl-,bromide
1,2,3-trimethyl benzene
1,2,3-Trimethyl-benzene
Trimethylarsoniumbromid
1,2,3-Trimethylbenzene
Trimethylarsendibromid
MFCD00008520

Chemical & Physical Properties

[ Density]:
0.9±0.1 g/cm3

[ Boiling Point ]:
176.8±20.0 °C at 760 mmHg

[ Melting Point ]:
−25 °C(lit.)

[ Molecular Formula ]:
C₉H₁₂

[ Molecular Weight ]:
120.192

[ Flash Point ]:
53.1±7.3 °C

[ Exact Mass ]:
120.093903

[ LogP ]:
3.60

[ Vapour density ]:
4.15 (vs air)

[ Vapour Pressure ]:
1.4±0.2 mmHg at 25°C

[ Index of Refraction ]:
1.501

[ Stability ]:
Stable. Flammable. Incompatible with strong oxidizing agents.

MSDS

Click to get detail MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :: DC3300000

CHEMICAL NAME :: Benzene, 1,2,3-trimethyl-

CAS REGISTRY NUMBER :: 526-73-8

BEILSTEIN REFERENCE NO. :: 1903410

LAST UPDATED :: 199710

DATA ITEMS CITED :: 5

MOLECULAR FORMULA :: C9-H12

MOLECULAR WEIGHT :: 120.21

WISWESSER LINE NOTATION :: 1R B1 C1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 10 mL/kg

TOXIC EFFECTS :: Lungs, Thorax, or Respiration - fibrosis, focal (pneumoconiosis) Lungs, Thorax, or Respiration - acute pulmonary edema Blood - hemorrhage

REFERENCE :: AMIHAB AMA Archives of Industrial Health. (Chicago, IL) V.11-21, 1955-60. For publisher information, see AEHLAU. Volume(issue)/page/year: 19,403,1959 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - T1997 No. of Facilities: 13 (estimated) No. of Industries: 2 No. of Occupations: 2 No. of Employees: 279 (estimated)

Safety Information

[ Symbol ]:

GHS02, GHS07

[ Signal Word ]:
Warning

[ Hazard Statements ]:
H226-H315-H319-H335

[ Precautionary Statements ]:
P261-P305 + P351 + P338

[ Personal Protective Equipment ]:
Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter

[ Hazard Codes ]:
Xi:Irritant;

[ Risk Phrases ]:
R10;R37

[ Safety Phrases ]:
S16

[ RIDADR ]:
UN 3295 3/PG 3

[ WGK Germany ]:
3

[ RTECS ]:
DC3300000

[ Packaging Group ]:
III

[ Hazard Class ]:
3.2

[ HS Code ]:
2902909090

Precursor & DownStream

Precursor

2,3-Dimethylbenzyl alcohol
3,3,5-trimethyl-7-azabicyclo[4.1.0]hept-4-ene
1,2,4-TRIMETHYL BENZENE
1-tert-butyl-3,4,5-trimethylbenzene
Biphenyl
Cyclohexane,1,1,2,3-tetramethyl-
1-(Chloromethyl)-2,3-dimethylbenzene
1,2,3-trimethyl-cyclohexene
m-Xylene
2,6-Dimethylbromobenzene

DownStream

1-Aminobenzene-3,4,5-tricarboxylic acid
2,6-Xylenol
2,3-Dimethylphenol
3,4,5-TRIMETHYLPHENOL
2,3,6-Trimethylphenol
2,3,4-trimethylphenol
2,6,6-TRIMETHYL-2,4-CYCLOHEXADIENONE
2,3,4-Trimethylaniline
1-(2,3,4-trimethylphenyl)ethanone
5-Nitrobenzene-1,2,3-tricarboxylic acid

Preparation

Customs

[ HS Code ]: 2902909090

[ Summary ]:
2902909090 other aromatic hydrocarbons。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:2.0%。General tariff:30.0%

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