m-Tolidine
- CAS NO.：84-67-3
- Empirical Formula: C14H16N2
- Molecular Weight: 212.29
- MDL number: MFCD02269175
- EINECS: 201-551-1
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-27 17:36:36
What is m-Tolidine?
Chemical properties
m-Tolidine is pink particles and can form prisms when exposed to water. It is soluble in cold water, alcohol, and ether. In the presence of iron(III) chloride, m-Tolidine does not produce any color. It is tetrazotized with nitrite and acid and couples to form dyes.
The Uses of m-Tolidine
M-TOLIDINE is used for preparation polyimide and epoxy resin material.
The Uses of m-Tolidine
2,2''-Dimethyl-[1,1''-biphenyl]-4,4''-diamine (cas# 84-67-3) is a useful reagent for manufacturing cured films and semiconductor devices.
Preparation
M-Tolidine is made by the reduction of m-nitrotoluene with zinc dust and sodium hydroxide solution. The subsequent rearrangement is carried out with hydrochloric acid or sulfuric acid and gives rise to m-tolidine dihydrochloride or m-tolidine sulfate, which are isolated as salts. The free base is diffificult to isolate and is therefore not a commercial product.
Definition
M-Tolidine gives no color in the presence of iron(III) chloride. It is tetrazotized with nitrite and acid and couples to form dyes. M-Tolidine was used in the past for the production of azo dyes.
Chemical Reactivity
M-Tolidine gives no color in the presence of iron(III) chloride. It is tetrazotized with nitrite and acid and couples to form dyes.
Properties of m-Tolidine
| Melting point: | 105-106℃ |
| Boiling point: | 344.4±37.0 °C(Predicted) |
| Density | 1.106 |
| storage temp. | Keep in dark place,Sealed in dry,Room Temperature |
| solubility | Chloroform (Slightly), Methanol (Slightly) |
| form | Solid |
| pka | 4.89±0.10(Predicted) |
| color | White to Off-White |
| Stability: | Incompatible with oxidising agents |
| InChI | InChI=1S/C14H16N2/c1-9-7-11(15)3-5-13(9)14-6-4-12(16)8-10(14)2/h3-8H,15-16H2,1-2H3 |
| CAS DataBase Reference | 84-67-3 |
Safety information for m-Tolidine
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for m-Tolidine
| InChIKey | QYIMZXITLDTULQ-UHFFFAOYSA-N |
| SMILES | C1(C2=CC=C(N)C=C2C)=CC=C(N)C=C1C |
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