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| | 3,4-Dimethylaniline Basic information |
| Product Name: | 3,4-Dimethylaniline | | Synonyms: | 3,4-Dimethylbeazenamine;3,4-dimethyl-benzenamin;3,4-dimethyl-Benzenamine;3,4-Dimethylbenzeneamine;3,4-Xylylamine;3,4-DitolueneAmine;3,4-Dimethylaniline, 99.50%;3,4-dimethylanilin D (1-Amino-3,4-dimethylbenzol) | | CAS: | 95-64-7 | | MF: | C8H11N | | MW: | 121.18 | | EINECS: | 202-437-4 | | Product Categories: | API intermediates | | Mol File: | 95-64-7.mol |  |
| | 3,4-Dimethylaniline Chemical Properties |
| Melting point | 49-51 °C(lit.) | | Boiling point | 226 °C(lit.) | | density | 1.076 | | vapor pressure | 3.72Pa at 25℃ | | refractive index | 1.5135 (estimate) | | Fp | 209 °F | | storage temp. | Store below +30°C. | | solubility | methanol: 0.1 g/mL, clear | | form | Crystalline Mass or Crystals | | pka | pK1:5.17(+1) (25°C) | | color | Light beige to pink to brown | | Water Solubility | <1 g/L (24 ºC) | | Merck | 14,10084 | | BRN | 507414 | | LogP | 1.8 at 25℃ | | Dissociation constant | 5.15 at 25℃ | | CAS DataBase Reference | 95-64-7(CAS DataBase Reference) | | NIST Chemistry Reference | Benzenamine, 3,4-dimethyl-(95-64-7) | | EPA Substance Registry System | 3,4-Dimethylaniline (95-64-7) |
| | 3,4-Dimethylaniline Usage And Synthesis |
| Chemical Properties | slightly beige to beige or pink crystalline mass | | Uses | 3,4-Dimethylaniline is used to study electron donor-acceptor interaction with DCNQ. It is also used as a fine chemical &organic intermediate. | | Uses | 3,4-Dimethylaniline (3,4-DMA) has been used to study the electron donor-acceptor (EDA) interaction between 2,3-dicyano-1,4-naphthoquinone (DCNQ) and 3,4-dimethylaniline, in chloroform and dichloromethane. It can also be used for reactions with MoO(X)2(dtc)2 (X = Cl or Br; dtc = diethyldithiocarbamate) in methanol to form ionic imido complexes of the type [MoNAr(dtc)3]2[Mo6O19] or MoNAr(dtc)3]4[Mo8O26]. | | Definition | ChEBI: A primary arylamine that is aniline in which the hydrogens at the 3- and 4-positions are replaced by methyl groups. A low-melting, crystalline solid, it is used in the production of vitamin B2, dyes, pesticides and other chemicals. | | Synthesis Reference(s) | Journal of the American Chemical Society, 63, p. 2532, 1941 DOI: 10.1021/ja01854a509
Organic Syntheses, Coll. Vol. 3, p. 307, 1955 | | General Description | Pale brown crystals or off-white solid. | | Air & Water Reactions | 3,4-Dimethylaniline may be sensitive to prolonged exposure to air. Insoluble in water. | | Reactivity Profile | 3,4-Dimethylaniline ignites on contact with fuming nitric acid . Neutralizes acids in exothermic reactions to form salts plus water. May be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen may be generated in combination with strong reducing agents, such as hydrides. | | Fire Hazard | 3,4-Dimethylaniline is combustible. | | Safety Profile | Suspected carcinogen.
Poison by ingestion. Mutation data reported.
When heated to decomposition it emits
toxic fumes of NOx. See also other xylidine
entries. | | Purification Methods | Crystallise it from ligroin and distil it under vacuum. [Beilstein 12 H 1103, 12 IV 2502.] |
| | 3,4-Dimethylaniline Preparation Products And Raw materials |
| Raw materials | Hydrochloric acid-->Sulfuric acid-->Aluminum chloride-->Isopropyl alcohol-->Hydrogen-->Hydroxylamine hydrochloride-->Sodium cyanide-->Polyphosphoric acid-->Chloroacetic acid-->4-Nitrotoluene-->o-Xylene-->Potassium Acetate-->BIS(CHLOROMETHYL)ETHER-->3',4'-Dimethylacetophenone | | Preparation Products | 2,3-DIHYDROXY-6,7-DIMETHYLQUINOXALINE-->4,6-DIMETHYL-1,2-PHENYLENEDIAMINE-->Riboflavin-->Vitamin B2-->Pendimethalin-->4,5-DIMETHYL-2-NITROANILINE-->2-AMINO-5,6-DIMETHYLBENZOTHIAZOLE-->2,5-Dimethylaniline-->3,4-Dimethylbenzoic acid-->4-CHLORO-6,7-DIMETHYLQUINOLINE-->1,2-Dimethyl-4-fluorobenzene |
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