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| CAS No.: | 526-73-8 |
|---|---|
| Name: | 1,2,3-Trimethylbenzene |
| Article Data: | 93 |
| Molecular Structure: | |
|
|
|
| Formula: | C9H12 |
| Molecular Weight: | 120.194 |
| Synonyms: | Hemimellitol;NSC 5167; |
| EINECS: | 208-394-8 |
| Density: | 0.869 g/cm3 |
| Melting Point: | -25 °C(lit.) |
| Boiling Point: | 176.766 °C at 760 mmHg |
| Flash Point: | 53.106 °C |
| Solubility: | 65.51mg/L(25 oC) |
| Appearance: | colourless liquid |
| Hazard Symbols: |
 Xi
|
| Risk Codes: | 10-37 |
| Safety: | 16 |
| Transport Information: | UN 3295 3/PG 3 |
| PSA: | 0.00000 |
| LogP: | 2.61180 |
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- 99170-93-1N-Methyl-2-oxazolamine
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- 548773-13-32-amino-4,6-dimethylpyrimidine-5-carboxylic acid
- 52378-83-3
epimino-1,2 trimethyl-3,5,5 cyclohexene-3
- 526-73-8
1,2,3-trimethylbenzene
| Conditions | Yield |
|---|---|
| With pyridine hydrogenfluoride In hexane at 0℃; for 8h; | 98% |
- 92-52-4
biphenyl
- 98-23-7
1,2,3-trimethyl-5-tert-butylbenzene
A
- 526-73-8
1,2,3-trimethylbenzene
B
- 1625-92-9
4-tert-butylbiphenyl
| Conditions | Yield |
|---|---|
| With Nafion-H at 130 - 135℃; for 12h; | A 80% B n/a |
- 98-23-7
1,2,3-trimethyl-5-tert-butylbenzene
A
- 526-73-8
1,2,3-trimethylbenzene
B
- 1625-92-9
4-tert-butylbiphenyl
| Conditions | Yield |
|---|---|
| With biphenyl; Nafion-H at 130 - 135℃; for 12h; | A 80% B n/a |
- 13061-96-6
dihydroxy-methyl-borane
- 6781-98-2
2,6-dimethyl-1-chlorobenzene
- 526-73-8
1,2,3-trimethylbenzene
| Conditions | Yield |
|---|---|
| With O4P(3-)*3K(1+)*5H2O; tris(1-adamantyl)phosphine; C28H26N2O8Pd2S2 In tetrahydrofuran at 50℃; for 5h; Suzuki-Miyaura Coupling; Inert atmosphere; Schlenk technique; | 50% |
| With 1,2,3-trimethoxybenzene; O4P(3-)*3K(1+)*5H2O; tris(1-adamantyl)phosphine; {2-[((acetyl-κO)amino)phenyl-κC](tri-1-adamantylphosphine)palladium}(p-toluenesulfonate) In tetrahydrofuran at 50℃; for 5h; Suzuki-Miyaura Coupling; | 50% |
- 95-47-6
o-xylene
A
- 611-14-3
2-Ethyltoluene
B
- 95-63-6
1,2,4-Trimethylbenzene
C
- 526-73-8
1,2,3-trimethylbenzene
D
- 89-95-2
2-methyl-benzyl alcohol
E
- 952-80-7
1,2-bis(2-methylphenyl)ethane
| Conditions | Yield |
|---|---|
| With peracetic acid at 20 - 22℃; Product distribution; Irradiation; λ>2900 Angstroem; | A 9.3% B n/a C n/a D 36.9% E n/a |
- 108-38-3
m-xylene
A
- 620-14-4
1-Methyl-3-ethylbenzene
B
- 95-63-6
1,2,4-Trimethylbenzene
C
- 526-73-8
1,2,3-trimethylbenzene
D
- 4662-96-8
1,2-di-m-tolylethane
E
- 587-03-1
3-methylbenzyl alcohol
F
- 108-67-8
1,3,5-trimethyl-benzene
| Conditions | Yield |
|---|---|
| With peracetic acid at 20 - 22℃; Product distribution; Irradiation; λ>2900 Angstroem; | A 7.4% B n/a C n/a D n/a E 30% F n/a |
| Conditions | Yield |
|---|---|
| With aluminium trichloride at 95℃; Einleiten von Methylchlorid; |
| Conditions | Yield |
|---|---|
| at 300℃; Leiten ueber Platin-Aluminiumoxyd; |
- 65338-71-8
4,4'-di-tert-butyl-2,2',6,6'-tetramethyldiphenylmethane
- 526-73-8
1,2,3-trimethylbenzene
| Conditions | Yield |
|---|---|
| With molybdenum oxide-aluminium oxide; benzene at 450℃; |
- 72312-48-2
1,2,3-trimethyl-cyclohexene
- 526-73-8
1,2,3-trimethylbenzene
| Conditions | Yield |
|---|---|
| With chromium corundum at 525℃; |
- 526-75-02,3-Xylenol
- 526-83-0D(-)-Tartaric acid
- 52686-75-6Silane,ethylmethoxydimethyl-
- 527-07-1Sodium gluconate
- 5271-27-21-Methyl-3-phenylpiperazine
- 52722-38-0Methanamine, N-methyl-, polymer with ammonia and (chloromethyl)oxirane
- 527-35-52,3,5,6-TETRAMETHYL PHENOL
- 52788-79-1DIETHYLENEGLYCOL METHYL-TERT-BUTYL ETHE&
- 104987-11-3Tacrolimus
- 141-53-7Sodium formate
- 8001-54-5Quaternary ammonium compounds, alkylbenzyldimethyl, chlorides
- 9003-39-8Povidone
- 10161-34-9Trenbolone acetate
- 402957-28-2Telaprevir
- 68-19-9Cyanocobalamin
- Total:28 Page 1 of 1 1
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Chemistry
Molecular Formula: C9H12
Molecular Weight: 120.19
EINECS: 208-394-8
Melting point: -25 °C(lit.)
Boiling point: 175-176 °C(lit.)
Density: 0.894 g/mL at 25 °C(lit.)
Vapor density: 4.15 (vs air)
Vapor pressure: 3.4 mm Hg ( 37.7 °C)
Refractive index: n20/D 1.513(lit.)
Flash point: 119 °F
Appearance: Colourless liquid
Structure of 1,2,3-Trimethylbenzene (CAS NO.526-73-8):
IUPAC Name: 1,2,3-Trimethylbenzene
Uses
1,2,3-Trimethylbenzene (CAS NO.526-73-8) is mainly used for the preparation of aniline dyes, alkyd resins, polyester resins,etc.
Toxicity Data With Reference
| 1. | orl-rat LDLo:5000 mg/kg | AMIHAB AMA Archives of Industrial Health. 19 (1959),403. |
Consensus Reports
Reported in EPA TSCA Inventory.
Safety Profile
Mildly toxic by ingestion. Flammable liquid when exposed to heat, sparks, or flame. To fight fire, use water spray, mist, dry chemical, CO2, foam. When heated to decomposition it emits acrid smoke and irritating fumes.
Hazard Codes of 1,2,3-Trimethylbenzene (CAS NO.526-73-8): 
Xi
Risk Statements: 10-37
R10:Flammable.
R37:Irritating to respiratory system
Safety Statements: 16
S16:Keep away from sources of ignition.
Standards and Recommendations
OSHA PEL: TWA 25 ppm
ACGIH TLV: TWA 25 ppm
DFG MAK: 20 ppm
Specification
1,2,3-Trimethylbenzene , its cas register number is 526-73-8. It also can be called Hemimellitene ; and Benzene, 1,2,3-trimethyl- .