1-(Ethylamino)-2-methylbenzene
N-Ethyl-o-toluidine
CAS: 94-68-8
Molecular Formula: C9H13N
1-(Ethylamino)-2-methylbenzene - Names and Identifiers
| Name | N-Ethyl-o-toluidine |
| Synonyms | Ethyl-O-toluidine N-ETHYL-2-TOLUIDINE N-ETHYL-O-TOLUIDINE N-Ethyl-2-toluidine N-Ethyl-o-toluidine 2-Ethylaminotoluene N-Ethyl-2-aminotoluene N-ETHYL-2-AMINOTOLUENE N-Ethyl-2-methylaniline N-ETHYL ORTHO TOLUIDINE N-ETHYL-2-METHYLANILINE Ethylamino-o-methylbenzene N-ethyl-2-methyl-Benzenamine 1-(Ethylamino)-2-methylbenzene N-Ethyl-N-(2-methylphenyl)amine |
| CAS | 94-68-8 |
| EINECS | 202-354-3 |
| InChI | InChI=1/C9H13N/c1-3-10-9-7-5-4-6-8(9)2/h4-7,10H,3H2,1-2H3 |
1-(Ethylamino)-2-methylbenzene - Physico-chemical Properties
| Molecular Formula | C9H13N |
| Molar Mass | 135.21 |
| Density | 0.938 g/mL at 25 °C(lit.) |
| Melting Point | -6.87°C (estimate) |
| Boling Point | 218 °C |
| Flash Point | 88 °C |
| Water Solubility | insoluble |
| Solubility | 1g/l |
| Vapor Presure | 1 hPa (20 °C) |
| BRN | 2689722 |
| pKa | pK1:4.92(＋1) (25°C) |
| Storage Condition | Store below +30°C. |
| Explosive Limit | 1.2-5.9%(V) |
| Refractive Index | 1.546-1.548 |
| Physical and Chemical Properties | Boiling point 218 ℃,95.5 ℃/1.3kPa, relative density 0.938, refractive index 1.5470, flash point 88 ℃. |
| Use | For dyes, pharmaceuticals and other organic synthesis |
1-(Ethylamino)-2-methylbenzene - Risk and Safety
| Hazard Symbols | T - Toxic |
| Risk Codes | R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S28A - S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| UN IDs | 2754 |
| WGK Germany | 1 |
| TSCA | Yes |
| HS Code | 2921 43 00 |
| Hazard Class | 6.1 |
| Packing Group | II |
| Toxicity | LD50 orally in Rabbit: 2400 mg/kg |
1-(Ethylamino)-2-methylbenzene - Reference Information
| olfactory Threshold | 0.026ppm |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Application | n-ethyl-2-methylaniline is an aniline derivative, which can be used as an important intermediate of color developer, also can be used as dye, medicine and pesticide intermediates. An intermediate of yulesan. used in dyes, pharmaceuticals and other organic synthesis |
| production method | 1. Ethanol alkylation method?? A fluidized bed reactor having a capacity of 400 parts was packed with H3PO4-SiO2 catalyst, an internal surface area of 10%/g and a H3PO4 content. In a quartz evaporator fitted in the lower part of the fluidized bed, 250 parts of a mixture of 110 o-toluidine and 66% ethanol [ratio of 1: 34% (molar ratio)] were evaporated at 1.2 °c. The fluidized bed was heated to 330 °c. 108 parts of condensate were obtained per hour, wherein the content of N-ethyl-o-toluidine was 60.0 parts, the content of N,N-diethyl-o-toluidine was 10.7 parts, and the content of o-toluidine was 14.5 parts. The conversion was 80%, and 82.5% of the reacted o-toluidine was converted to N-ethyl o-toluidine and 13.1% to N,N-diethyl-o-toluidine. The alkylating agent ethanol was converted to ethylene by 5%. 2. Alkylation of bromoethane? 40ml (0.37mol) of o-toluidine and 14ml (0.185mol) of bromoethane were added to a ML three-necked flask, and after heating under reflux for 2H, the mixture was basified with a 40% sodium hydroxide solution. A solution of 18.5g of zinc chloride (0.136mol) in 20ml of water was then added and stirred for 2.5h. Filter, filter solid with petroleum ether in Soxhlet continuous extraction, extract with dilute ammonia and distilled water, distilled off petroleum ether, the residual liquid vacuum distillation, 105~110 ℃(4.67kpa) fractions were collected to obtain 21.1g of finished product. Based on bromoethane, the yield of this product was 85%. |
| category | toxic substances |
| flammability hazard characteristics | flammable; Combustion decomposition of toxic nitrogen oxide gases |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature, and separate storage and transportation of food |
| fire extinguishing agent | carbon dioxide, foam, dry powder, sand |
| autoignition temperature | 445°C |
Last Update：2024-04-09 21:11:58
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