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| CAS No.: | 95-68-1 |
|---|---|
| Name: | 2,4-Dimethyl aniline |
| Molecular Structure: | |
|
|
|
| Formula: | C8H11N |
| Molecular Weight: | 121.182 |
| Synonyms: | 2,4-Xylidine(8CI);1-Amino-2,4-dimethylbenzene;2,4-Xylidine;2,4-Dimethylbenzenamine;2,4-Dimethylphenylamine;2,4-Xylylamine;4-Amino-1,3-dimethylbenzene;4-Amino-1,3-xylene;Benzenamine,2,4-dimethyl-;m-Xylidine; |
| EINECS: | 202-440-0 |
| Density: | 0.975 g/cm3 |
| Melting Point: | 16 °C |
| Boiling Point: | 214.7 °C at 760 mmHg |
| Flash Point: | 90.6 °C |
| Solubility: | 5 g/L (20 °C) in water |
| Appearance: | Colourless to yellow or dark brown liquid |
| Hazard Symbols: |
 T,  N
|
| Risk Codes: | 23/24/25-33-51/53 |
| Safety: | 28-36/37-45-61-28A |
| Transport Information: | UN 1711 6.1/PG 2 |
| PSA: | 26.02000 |
| LogP: | 2.46680 |
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Chemistry
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IUPAC Name: 2,4-Dimethylaniline
Molecular Formula: C8H11N
Molecular Weight: 121.18 g/mol
Canonical SMILES: c1(c(ccc(c1)C)N)C
InChI: InChI=1/C8H11N/c1-6-3-4-8(9)7(2)5-6/h3-5H,9H2,1-2H3
EINECS: 202-440-0
Classification Code: Mutation data; Tumor data
Product Categories: Intermediates of Dyes and Pigments; Intermediates; Amines
XLogP3: 1.7
H-Bond Donor: 1
H-Bond Acceptor: 1
Surface Tension: 37.9 dyne/cm
Density: 0.975 g/cm3
Flash Point: 90.6 °C
Enthalpy of Vaporization: 45.1 kJ/mol
Boiling Point: 214.7 °C at 760 mmHg
Water Solubility: 5 g/L (20 °C)
Melting Point: 16 °C
Vapor Density: 4.2 (vs air)
Vapour Pressure of 2,4-Xylidine (CAS NO.95-68-1): 0.154 mmHg at 25 °C
Uses
2,4-Xylidine (CAS NO.95-68-1) is commonly used as intermediates for pesticides, medicine and dyes.
Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| mouse | LC50 | inhalation | 149ppm/7H (149ppm) | "Documentation of the Threshold Limit Values and Biological Exposure Indices," 5th ed., Cincinnati, OH, American Conference of Governmental Industrial Hygienists, Inc., 1986Vol. 6, Pg. 1743, 1991. | |
| mouse | LD50 | oral | 250mg/kg (250mg/kg) | National Technical Information Service. Vol. PB214-270, | |
| rat | LD50 | oral | 467mg/kg (467mg/kg) | National Technical Information Service. Vol. PB214-270, |
Consensus Reports
IARC Cancer Review: Group 3 IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 7 ,1987,p. 56.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Animal Inadequate Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 16 ,1978,p. 367.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) . Reported in EPA TSCA Inventory.
Safety Profile
Suspected carcinogen. Poison by ingestion. Mutation data reported. When heated to decomposition it emits toxic fumes of NOx.
Hazard Codes: 
T, 
N
Risk Statements: 23/24/25-33-51/53
R23/24/25: Toxic by inhalation, in contact with skin and if swallowed.
R33: Danger of cumulative effects.
R51/53: Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Statements: 28-36/37-45-61
S28: After contact with skin, wash immediately with plenty of soap-suds.
S36/37: Wear suitable protective clothing and gloves.
S45: In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
S61: Avoid release to the environment. Refer to special instructions / safety data sheets.
RIDADR: UN 1711 6.1/PG 2
WGK Germany: 2
RTECS: ZE8925000
HazardClass: 6.1
PackingGroup 2,4-Xylidine (CAS NO.95-68-1): II
Standards and Recommendations
DFG MAK: Animal Carcinogen, Suspected Human Carcinogen
Analytical Methods
For occupational chemical analysis use NIOSH: Amines, Aromatic, 2002.
Specification
2,4-Xylidine (CAS NO.95-68-1), its Synonyms are 1-Amino-2,4-dimethylbenzene ; 2,4-Dimethylaniline ; 2,4-Dimethylbenzenamine ; 2,4-Dimethylphenylamine ; 2-Methyl-p-toluidine ; 4-Amino-1,3-dimethylbenzene ; Aniline, 2,4-dimethyl- ; Benzenamine, 2,4-dimethyl- ; m-Xylidine ; meta-Xylidine ; 4-Methyl-o-toluidine . It is colourless to yellow or dark brown liquid. It may be sensitive to prolonged exposure to air, slightly soluble in water.