N,N-Dimethyl-p-toluidine
- CAS No.
- 99-97-8
- Chemical Name:
- N,N-Dimethyl-p-toluidine
- Synonyms
- N,N,4-Trimethylaniline;Dimethyl-p-toluidine;dimethyltoluidine;n,n-dimethyl-p-toluidin;N,N-DIMETHYL-4-TOLUIDINE;N,N-Dimethyl-p-tolylamine;N,N-DIMETHYL-4-METHYLANILINE;4,N,N-TrimethyL;N,N,4-trimethyl-;DIMETHYLTOLYLAMINE
- CBNumber:
- CB4196682
- Molecular Formula:
- C9H13N
- Molecular Weight:
- 135.21
- MDL Number:
- MFCD00008316
- MOL File:
- 99-97-8.mol
- MSDS File:
- SDS
Melting point | -25°C |
---|---|
Boiling point | 211 °C(lit.) |
Density | 0.937 g/mL at 25 °C(lit.) |
vapor density | >1 (vs air) |
vapor pressure | 0.1 hPa (20 °C) |
refractive index |
n |
Flash point | 182 °F |
storage temp. | Store below +30°C. |
solubility | 0.65g/l |
form | Liquid |
pka | pK1:7.24(+1) (25°C) |
color | Clear yellow |
explosive limit | 7% |
Water Solubility | Miscible with alcohol, ether and chloroform. Immiscible with water. |
BRN | 774409 |
Dielectric constant | 3.3(20℃) |
Stability | Stable. Combustible. Incompatible with strong oxidizing agents. |
InChIKey | GYVGXEWAOAAJEU-UHFFFAOYSA-N |
LogP | 1.729-2.81 at 35℃ |
CAS DataBase Reference | 99-97-8(CAS DataBase Reference) |
EWG's Food Scores | 1 |
FDA UNII | S8XC5939VU |
Proposition 65 List | N,N-Dimethyl-p-toluidine |
IARC | 2B (Vol. 115) 2018 |
EPA Substance Registry System | N,N,4-Trimethylaniline (99-97-8) |
SAFETY
Risk and Safety Statements
Symbol(GHS) | ![]() ![]() GHS06,GHS08 |
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Signal word | Danger | |||||||||
Hazard statements | H301+H311-H330-H373-H412 | |||||||||
Precautionary statements | P260-P273-P280-P302+P352+P312-P304+P340+P310-P314 | |||||||||
Hazard Codes | T | |||||||||
Risk Statements | 23/24/25-33-52/53 | |||||||||
Safety Statements | 28-36/37-45-61-28A-51-44-36-22-20/21 | |||||||||
RIDADR | 1708 | |||||||||
WGK Germany | 3 | |||||||||
RTECS | XU5803000 | |||||||||
F | 8-10-23 | |||||||||
Autoignition Temperature | 425 °C | |||||||||
TSCA | Yes | |||||||||
HS Code | 2921 43 00 | |||||||||
HazardClass | 6.1 | |||||||||
PackingGroup | II | |||||||||
Toxicity | LD50 orally in Rabbit: 1650 mg/kg | |||||||||
NFPA 704 |
|
N,N-Dimethyl-p-toluidine price More Price(29)
Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
---|---|---|---|---|---|---|---|
Sigma-Aldrich | 8.22040 | N,N-Dimethyl-p-toluidine for synthesis | 99-97-8 | 5ML | $27.1 | 2024-03-01 | Buy |
Sigma-Aldrich | 8.22040 | N,N-Dimethyl-p-toluidine for synthesis | 99-97-8 | 250ML | $68.2 | 2024-03-01 | Buy |
Sigma-Aldrich | 8.22040 | N,N-Dimethyl-p-toluidine for synthesis | 99-97-8 | 1L | $139 | 2024-03-01 | Buy |
Sigma-Aldrich | 41690 | 4,N,N-Trimethylaniline catalyst grade (for peroxide polymerization), ≥98.5% (GC) | 99-97-8 | 100ml | $61.8 | 2024-03-01 | Buy |
Sigma-Aldrich | 41690 | 4,N,N-Trimethylaniline catalyst grade (for peroxide polymerization), ≥98.5% (GC) | 99-97-8 | 500ml | $142 | 2024-03-01 | Buy |
N,N-Dimethyl-p-toluidine Chemical Properties,Uses,Production
Chemical Properties
light yellow liquid
Uses
N,N-Dimethyl-4-toluidine is an amine accelerator for the polymerization of e.g. dental methacrylic restorative materials
Uses
N,N-Dimethyl-p-toluidine is used as a polymerization catalyst for polyesters, acrylate and epoxy resins. It is also used as a hardener for dental cements and in adhesives. It serves as an intermediate for photographic chemicals, in industrial glues, in artificial fingernail preparations, colorants, pharmaceuticals. It reacts with vinyl ether in the presence of copper(II) chloride gives tetrahydroquinolines. Further, it is used to accelerate polymerization of ethyl methacrylate.
Synthesis Reference(s)
Synthetic Communications, 19, p. 3051, 1989 DOI: 10.1080/00397918908052700
Tetrahedron Letters, 8, p. 1849, 1967
General Description
A clear colorless liquid with an aromatic odor. Density 0.937 g / cm3 (Lancaster) and insoluble in water. Hence floats on water. Toxic by skin absorption and inhalation. Flash point 181°F. May release toxic vapors when burned.
Air & Water Reactions
Tends to darken upon exposure to air. Insoluble in water.
Reactivity Profile
N,N-Dimethyl-p-toluidine 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. May generate hydrogen, a flammable gas, in combination with strong reducing agents such as hydrides.
Health Hazard
TOXIC; inhalation, ingestion or skin contact with material may cause severe injury or death. Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.
Fire Hazard
Combustible material: may burn but does not ignite readily. When heated, vapors may form explosive mixtures with air: indoors, outdoors and sewers explosion hazards. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. Runoff may pollute waterways. Substance may be transported in a molten form.
Synthesis
N,N-Dimethyl-p-toluidine was prepared by reacting p-toluidine with methanol and POCl3 in autoclave heated up to 280° C for 3h.
Purification Methods
Reflux for 3hours with 2 molar equivalents of Ac2O, then fractionally distil it under reduced pressure. Alternatively, dry it over BaO, distil and store it over KOH. The picrate has m 128o (from EtOH). Methods described for N,N-dimethylaniline are applicable here. [Beilstein 12 H 902, 12 III 2026, 12 IV 1874.]
N,N-Dimethyl-p-toluidine Preparation Products And Raw materials
Raw materials
Preparation Products
Supplier | Tel | Country | ProdList | Advantage | |
---|---|---|---|---|---|
Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418679 +86-18949832763 | info@tnjchem.com | China | 2989 | 55 |
Tianjin Zhongxin Chemtech Co., Ltd. | +86-022-66880623 +8618622897568 | sales@tjzxchem.com | China | 562 | 58 |
Hebei Mojin Biotechnology Co., Ltd | +8613288715578 | sales@hbmojin.com | China | 12450 | 58 |
Hebei Yanxi Chemical Co., Ltd. | +86-17531190177; +8617531190177 | peter@yan-xi.com | China | 5873 | 58 |
Hebei Guanlang Biotechnology Co,.LTD | +8619930503252 | daisy@crovellbio.com | China | 5828 | 58 |
Hebei Kingfiner Technology Development Co.Ltd | +86-15532196582 +86-15373005021 | lisa@kingfinertech.com | China | 2989 | 58 |
Shaanxi Franta Biotechnology Co., Ltd | +86-13082019107 +86-13082019107 | admin@flanderff.com | China | 225 | 58 |
Hebei Saisier Technology Co., LTD | +86-18400010335 +86-18034520335 | admin@hbsaisier.cn | China | 996 | 58 |
Hebei Zhuanglai Chemical Trading Co.,Ltd | +8613343047651 | admin@zlchemi.com | China | 3002 | 58 |
Hebei Longbang Technology Co., LTD | +86-18032476855 +86-18032476855 | admin@hblongbang.com | China | 935 | 58 |
View Lastest Price from N,N-Dimethyl-p-toluidine manufacturers
Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
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2024-08-24 | N,N-Dimethyl-p-toluidine Purity 99%
99-97-8
|
US $50.00 / kg | 1kg | 99% | 10000 Kilogram/Kilograms per Day | Hebei Miaoyin Technology Co.,Ltd | |
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2024-08-23 | N,N-DIMETHYL-P-TOLUIDINE
99-97-8
|
US $6.00 / kg | 1kg | 99% | 2000KG/Month | HebeiShuoshengImportandExportco.,Ltd | |
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2024-08-23 | N,N-Dimethyl-4-methylaniline
99-97-8
|
US $0.00 / Kg/Drum | 1KG | 99% | 2000mt/year | Jinan Finer Chemical Co., Ltd |
-
- N,N-Dimethyl-p-toluidine Purity 99%
99-97-8
- US $50.00 / kg
- 99%
- Hebei Miaoyin Technology Co.,Ltd
-
- N,N-DIMETHYL-P-TOLUIDINE
99-97-8
- US $6.00 / kg
- 99%
- HebeiShuoshengImportandExportco.,Ltd
-
- N,N-Dimethyl-4-methylaniline
99-97-8
- US $0.00 / Kg/Drum
- 99%
- Jinan Finer Chemical Co., Ltd
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