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EINECS 202-465-7
CAS No. 95-93-2 Density 0.868 g/cm3
PSA 0.00000 LogP 2.92020
Solubility insoluble in water Melting Point 78 °C
Formula C10 H14 Boiling Point 192 °C at 760 mmHg
Molecular Weight 134.221 Flash Point 73.9 °C
Transport Information UN 1325 4.1/PG 2 Appearance white crystalline powder
Safety 16 Risk Codes 11
Molecular Structure Molecular Structure of 95-93-2 (1,2,4,5-Tetramethylbenzene) Hazard Symbols FlammableF

p-Xylene,2,5-dimethyl- (7CI);Durene;Durol;NSC 6770;

Article Data 134

1,2,4,5-Tetramethylbenzene Chemical Properties

Product Name: 1,2,4,5-Tetramethylbenzene (CAS NO.95-93-2)
IUPAC Name: 1,2,4,5-Tetramethylbenzene

Molecular Formula: C10H14
Molecular Weight: 134.22 g/mol
EINECS: 202-465-7
Melting Point: 78 °C
Density: 0.868 g/cm3 
Flash Point: 73.9 °C
Boiling Point: 192 °C at 760 mmHg
Index of Refraction: 1.501 
Molar Refractivity: 45.55 cm3 
Molar Volume: 154.5 cm3 
Surface Tension: 28.7 dyne/cm   
Enthalpy of Vaporization: 41.07 kJ/mol 
Vapour Pressure: 0.696 mmHg at 25°C
Product Categories: Highly Purified Reagents; Other Categories; Zone Refined Products

1,2,4,5-Tetramethylbenzene Uses

 1,2,4,5-Tetramethylbenzene (CAS NO.95-93-2) is mainly used for preparation of pyromellitic dianhydride, also used in the production of polyimide resins, dyes, plasticizers, surface active agent.

1,2,4,5-Tetramethylbenzene Toxicity Data With Reference


orl-rat LD50:6989 mg/kg

    DCTODJ    Drug and Chemical Toxicology. 1 (1978),219.

ivn-mus LD50:180 mg/kg

    CSLNX*    U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. (Aberdeen Proving Ground, MD 21010) NX#00212 .


1,2,4,5-Tetramethylbenzene Consensus Reports

Reported in EPA TSCA Inventory.

1,2,4,5-Tetramethylbenzene Safety Profile

Poison by intravenous route. Mildly toxic by ingestion. When heated to decomposition it emits acrid smoke and irritating fumes.
Safety Information of 1,2,4,5-Tetramethylbenzene (CAS NO.95-93-2):
Hazard Codes:
F: Flammable
Risk Statements:
R11 Highly flammable.
Safety Statements:
S16 Keep away from sources of ignition - No smoking.
1. Storage: Keep away from heat, sparks, and flame. Keep away from sources of ignition. Keep container closed when not in use. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
2. Handling: Avoid ingestion and inhalation. Avoid contact with heat, sparks and flame. Avoid contact with eyes, skin, and clothing. Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use only in a well ventilated area. Minimize dust generation and accumulation. Use spark-proof tools and explosion proof equipment. Keep container tightly closed. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames. Keep from contact with moist air and steam.

1,2,4,5-Tetramethylbenzene Specification

  1,2,4,5-Tetramethylbenzene , its CAS NO. is CAS NO.95-93-2, the synonyms are 1,2,4,5-Tetramethyl-benzen ; 2,5-Dimethyl-p-xylen ; Benzene,1,2,4,5-Tetramethyl- ; I,i,4,5-Tetramcthylben~oiaG ; sym-Tetramethylbenzene ; 1,2,4,5-Tetramethylbenzene .

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