2,5-Dimethoxyaniline
2,5-Dimethoxyaniline
CAS: 102-56-7
Molecular Formula: C8H11NO2
2,5-Dimethoxyaniline - Names and Identifiers
| Name | 2,5-Dimethoxyaniline |
| Synonyms | c.i.35811 C.I. 35811 Dimethoxyaniline 2,5-dimethoxy-anilin 2,5-Dimethoxyaniline DIMETHOXYANILINE(2,5-) 2,5-dimethoxybenzenamine 2,5-dimethoxy-benzenamin 2,5-dimethoxy-Benzenamine Benzenamine,2,5-dimethoxy- Benzenamine, 2,5-dimethoxy- Aminohydroquinone dimethyl ether 2-Aminohydroguinonedimethylether |
| CAS | 102-56-7 |
| EINECS | 203-040-9 |
| InChI | InChI=1/C8H11NO2/c1-10-6-3-4-8(11-2)7(9)5-6/h3-5H,9H2,1-2H3 |
2,5-Dimethoxyaniline - Physico-chemical Properties
| Molecular Formula | C8H11NO2 |
| Molar Mass | 153.18 |
| Density | 1.1577 (rough estimate) |
| Melting Point | 78-80 °C (lit.) |
| Boling Point | 140 °C (7 mmHg) |
| Flash Point | 130 °C |
| Water Solubility | 4 g/L (40 ºC) |
| Solubility | Soluble in water, ethanol, hot rigroine. |
| Vapor Presure | 0.19Pa at 20℃ |
| Appearance | Grey to dark brown crystals |
| Color | Gray to dark brown |
| BRN | 776823 |
| pKa | 4.12±0.10(Predicted) |
| Storage Condition | Keep in dark place,Inert atmosphere,Room temperature |
| Sensitive | Sensitive to light |
| Refractive Index | 1.4770 (estimate) |
| MDL | MFCD00008368 |
| Physical and Chemical Properties | Gray flaky solid. Melting Point: 69~73 ℃ Boiling Point: 270 ℃ (partial decomposition) solubility: soluble in water, ethanol and hot ligroin. |
| Use | Intermediates for the preparation of ice dye black salt K and intermediates for pharmaceuticals, pesticides and antioxidants |
2,5-Dimethoxyaniline - Risk and Safety
| Risk Codes | R25 - Toxic if swallowed R36/37/38 - Irritating to eyes, respiratory system and skin. R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. |
| 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. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S22 - Do not breathe dust. |
| UN IDs | UN 2811 6.1/PG 3 |
| WGK Germany | 1 |
| RTECS | BX4375000 |
| FLUKA BRAND F CODES | 8-10-23 |
| TSCA | Yes |
| HS Code | 29214200 |
| Hazard Note | Toxic/Irritant |
| Hazard Class | 6.1 |
| Packing Group | III |
2,5-Dimethoxyaniline - Nature
Open Data Verified Data
gray flaky solid. Melting Point: 69~73 °c. Boiling point 270 °c (partial decomposition). Soluble in water, ethanol, hot ligroin.
Last Update：2024-01-02 23:10:35
2,5-Dimethoxyaniline - Preparation Method
Open Data Verified Data
hydroquinone is dissolved in a liquid alkali to form a sodium salt of hydroquinone. The sodium salt of hydroquinone and methyl chloride at 75~120 ℃, 1.3 ~ 1.7MPa pressure reaction to generate p-dimethoxybenzene, then Nitration with nitric acid to generate 2,5-= methoxynitrobenzene, it was reduced with sodium disulfide to give 2,5-methoxyaniline.
Last Update：2022-01-01 10:51:12
2,5-Dimethoxyaniline - Introduction
See the light color darker. Soluble in hot water and hot ethanol. Soluble in most conventional organic solvents such as petroleum ether, insoluble in cold water, solubility in water: 4g/L (40°C)
Last Update：2022-10-16 17:11:33
2,5-Dimethoxyaniline - Use
Open Data Verified Data
It is used as an intermediate for preparing ice dye black salt K and an intermediate for medicine and insecticide.
Last Update：2022-01-01 10:51:12
2,5-Dimethoxyaniline - Safety
Open Data Verified Data
This product is toxic. Irritation of the skin and mucous membranes. Can cause allergies. Its toxicity and protection methods refer to aniline. This product is generally an intermediate in the production process and is not sold.
Last Update：2022-01-01 10:51:13
2,5-Dimethoxyaniline - Reference Information
| LogP | 1.16 at 23℃ and pH6.5-7.5 |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| application | 2,5-dimethoxyaniline is used to prepare the intermediate of ice dye black salt K and the intermediate of medicine, pesticide and antioxidant, which can be used in laboratory research and development process and chemical production process. |
| Preparation | Hydroquinone is dissolved in liquid alkali to form sodium hydroquinone salt. The sodium hydroquinone salt and monochloromethane are reacted at 75~120 ℃ and 1.3~1.7MPa to generate p-dimethoxybenzene, and then nitrated with nitric acid to generate 2,5-dimethoxynitrobenzene, which is reduced with sodium disulfide to obtain 2,5-dimethoxyaniline. |
| uses | intermediates for preparing black salt k of ice dye and intermediates for medicines, pesticides and antioxidants this product is used as dye intermediates to produce black salt k (C.I.37910). This dye variety is mainly used to mix black salt AMS. The product is also used in the production of drugs, pesticides and antioxidants. Organic synthesis, dye intermediates, insecticides, antioxidants. |
| production method | hydroquinone is dissolved in liquid alkali to produce sodium hydroquinone salt. The sodium hydroquinone salt and monochloromethane are reacted at 75-120 ℃ and 1.3-1.7MPa to generate p-dimethoxybenzene, and then nitrated with nitric acid to generate 2,5-dimethoxynitrobenzene, which is reduced with sodium disulfide to obtain 2,5-dimethoxyaniline. |
| category | toxic substances |
| toxicity classification | highly toxic |
| acute toxicity | oral-mouse LD50:120 mg/kg; Oral-bird LD50: 100 mg/kg |
| flammability hazard characteristics | combustible; combustion produces toxic nitrogen oxide smoke |
| storage and transportation characteristics | warehouse ventilation and low temperature drying |
| fire extinguishing agent | dry powder, foam, sand, carbon dioxide, mist water |
Last Update：2024-04-09 20:02:46
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