Mesitylene cas no:108-67-8
Synonyms: 1,3,5-trimethylbenzene single component; 1,3,5-trimethylbenzene neat*standard for epa; 1,3,5-Trimethylbenzene
NameMesitylene
CAS108-67-8
Synonyms1,3,5-trimethylbenzene single component; 1,3,5-trimethylbenzene neat*standard for epa; 1,3,5-Trimethylbenzene
EINECS(EC#)203-604-4
Molecular FormulaC9H12
Molecular Weight120.19
Appearancecolorless liquid with a peculiar odor
refractive index1.498-1.5
storage temp2-8°C
Globally Harmonized System of Classification adn Labelling of Chemicals(GHS)
Hazardclass3
Hazard Xi:Irritant;N:Dangerousfortheenvironment;
Risk R10;R37;R51/53
Safety
Poison by inhalation. Moderately toxic by intraperitoneal route. Human systemic effects by inhalation: sensory changes involving peripheral nerves, somnolence (general depressed activity), and structural or functional change in trachea or bronchi. Reports of leukopenia and thrombocytopenia in experimental animals. A mild skin and eye irritant. A flammable liquid when exposed to heat or flame; can react vigorously with oxidizing materials. Violent reaction with HNO3. To fight fire, use water spray, fog, foam, CO2. Emitted from modern building materials ( CENEAR ?? Chemical and Engineering News. 69 (1991),22. ). When heated to decomposition it emits acrid smoke and irritating fumes.
Hazard Codes: 
Xi,
N,
F,
T
Risk Statements: 10-37-51/53-39/23/24/25-23/24/25-11
10:? Flammable?
37:? Irritating to the respiratory system?
51/53:? Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment?
39/23/24/25:? Toxic: danger of very serious irreversible effects through inhalation, in contact with skin and if swallowed
23/24/25:? Toxic by inhalation, in contact with skin and if swallowed?
11:? Highly Flammable??
Safety Statements: 61-45-36/37-16-7
61:? Avoid release to the environment. Refer to special instructions safety data sheet?
45:? In case of accident or if you feel unwell, seek medical advice immediately (show label where possible)?
36/37:? Wear suitable protective clothing and gloves?
16:? Keep away from sources of ignition - No smoking?
7:? Keep container tightly closed??
RIDADR: UN 2325 3/PG 3
WGK Germany: 2
RTECS: OX6825000
F: 10: Keep under argon.
Hazard Note: Irritant/Flammable
HazardClass: 3
PackingGroup: III
HS Code: 29029080
HS Code 29029080
| Organism |
Test Type |
Route |
Reported Dose (Normalized Dose) |
Effect |
Source |
| guinea pig |
LDLo |
intraperitoneal |
1303mg/kg (1303mg/kg) |
? |
AMA Archives of Industrial Hygiene and Occupational Medicine. Vol. 9, Pg. 227, 1954. |
| human |
TCLo |
inhalation |
10ppm (10ppm) |
PERIPHERAL NERVE AND SENSATION: SENSORY CHANGE INVOLVING PERIPHERAL NERVE
BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)
LUNGS, THORAX, OR RESPIRATION: STRUCTURAL OR FUNCTIONAL CHANGE IN TRACHEA OR BRONCHI |
Zeitschrift fuer Unfallmedizin und Berufskrankheiten. Revue de Medecine des Accidents et des Maladies Professionelles. Vol. 49, Pg. 265, 1956. |
| rat |
LC50 |
inhalation |
24gm/m3/4H (24000mg/m3) |
? |
Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 44(5), Pg. 15, 1979. |
