4-Bromo-2-nitrobenzoic acid（CAS# 99277-71-1)
| Risk Codes | R22 – Harmful if swallowed R36/37/38 – Irritating to eyes, respiratory system and skin. R43 – May cause sensitization by skin contact R50 – Very Toxic to aquatic organisms |
| 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. S61 – Avoid release to the environment. Refer to special instructions / safety data sheets. |
| UN IDs | UN 3077 9/PG 3 |
| WGK Germany | 2 |
| HS Code | 29163990 |
| Hazard Class | IRRITANT |
| Packing Group | III |
Introduction
4-Bromo-2-nitrobenzoic acid is an organic compound, often abbreviated as BNBA. The following is an introduction to its properties, uses, manufacturing methods and safety information:
Quality:
- Appearance: 4-Bromo-2-nitrobenzoic acid is a white crystalline solid.
- Solubility: It can be well soluble in common organic solvents such as ethanol, chloroform and dimethylformamide.
Use:
- Pigment field: This compound can be used to prepare some specialty pigments.
Method:
- The preparation of 4-bromo-2-nitrobenzoic acid is usually obtained by reacting 2-nitrobenzoic acid and bromine under acidic conditions. For the specific preparation method, please refer to the relevant organic synthesis literature.
Safety Information:
- The compound has a certain irritation, and protective measures such as wearing gloves, goggles, etc., should be taken during operation.
- Keep away from open flames and high-temperature substances, and store in a cool, dry place.
- There are insufficient toxicity data, the toxicity of 4-bromo-2-nitrobenzoic acid is not known, and caution should be exercised when using or handling it, and relevant safe operating practices should be followed.
