4-BROMO-6-NITRO-O-TOLUIDINE
4-Bromo-2-methyl-6-nitro-phenylamine
CAS: 77811-44-0
Molecular Formula: C7H7BrN2O2
4-BROMO-6-NITRO-O-TOLUIDINE - Names and Identifiers
4-BROMO-6-NITRO-O-TOLUIDINE - Physico-chemical Properties
| Molecular Formula | C7H7BrN2O2 |
| Molar Mass | 231.05 |
| Density | 1.7207 (rough estimate) |
| Melting Point | 143-147 °C |
| Boling Point | 326.8±37.0 °C(Predicted) |
| Flash Point | 151.4°C |
| Water Solubility | Slightly soluble in water and soluble in hot methanol. |
| Vapor Presure | 0.000211mmHg at 25°C |
| BRN | 3530524 |
| pKa | -1.23±0.25(Predicted) |
| Storage Condition | Keep in dark place,Inert atmosphere,Room temperature |
| Refractive Index | 1.5150 (estimate) |
4-BROMO-6-NITRO-O-TOLUIDINE - Risk and Safety
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37 - Wear suitable protective clothing and gloves. |
| WGK Germany | 3 |
| HS Code | 29214200 |
| Hazard Note | Harmful |
| Hazard Class | IRRITANT |
4-BROMO-6-NITRO-O-TOLUIDINE - Introduction
It is an organic compound with the formula C7H7BrN2O2. The following is a description of its nature, use, preparation and safety information:
Nature:
-Appearance: It is a yellow crystalline solid.
-Melting point: about 135-140 ℃.
-Solubility: It is soluble in ethanol and chloroform, but insoluble in water.
-Stability: The compound is stable and not easy to decompose at room temperature.
Use:
-is often used as an intermediate in organic synthesis.
-It can be used to synthesize organic compounds such as drugs, dyes and pesticides.
Preparation Method:
The preparation method is as follows:
1. first, 3-nitrobenzaldehyde is reacted with hypobromic acetate to generate 3-bromo -2-nitrobenzoic acid ethyl ester.
2.3-bromo -2-nitrobenzoic acid ethyl ester reacts with methanol to generate 3-bromo -2-nitrobenzoic acid methyl ester.
3. Finally, 3-bromo-2-nitrobenzoic acid methyl ester is reacted with methylamine to obtain phosphonium.
Safety Information:
-may cause irritation to the eyes, skin and respiratory system, so protective measures should be taken when in contact.
-It should be stored in a dry, well-ventilated place, away from fire and oxidizing agents.
-When handling the compound, follow proper laboratory procedures to prevent contact with the skin, inhalation, or ingestion. In the case of accidental contact, rinse immediately with plenty of water and seek medical help.
Nature:
-Appearance: It is a yellow crystalline solid.
-Melting point: about 135-140 ℃.
-Solubility: It is soluble in ethanol and chloroform, but insoluble in water.
-Stability: The compound is stable and not easy to decompose at room temperature.
Use:
-is often used as an intermediate in organic synthesis.
-It can be used to synthesize organic compounds such as drugs, dyes and pesticides.
Preparation Method:
The preparation method is as follows:
1. first, 3-nitrobenzaldehyde is reacted with hypobromic acetate to generate 3-bromo -2-nitrobenzoic acid ethyl ester.
2.3-bromo -2-nitrobenzoic acid ethyl ester reacts with methanol to generate 3-bromo -2-nitrobenzoic acid methyl ester.
3. Finally, 3-bromo-2-nitrobenzoic acid methyl ester is reacted with methylamine to obtain phosphonium.
Safety Information:
-may cause irritation to the eyes, skin and respiratory system, so protective measures should be taken when in contact.
-It should be stored in a dry, well-ventilated place, away from fire and oxidizing agents.
-When handling the compound, follow proper laboratory procedures to prevent contact with the skin, inhalation, or ingestion. In the case of accidental contact, rinse immediately with plenty of water and seek medical help.
Last Update：2024-04-09 21:00:56
