2 3-Diamino-5-bromopyridine（CAS# 38875-53-5)
| Risk Codes | R36/37/38 – Irritating to eyes, respiratory system and skin. R34 – Causes burns |
| Safety Description | S26 – In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 – Wear suitable protective clothing. S37/39 – Wear suitable gloves and eye/face protection 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. |
| WGK Germany | 3 |
| HS Code | 29333990 |
| Hazard Note | Irritant |
| Hazard Class | 6.1 |
| Packing Group | III |
Introduction
5-Bromo-2,3-diaminopyridine is an organic compound. The following is an introduction to its nature, use, manufacturing methods and safety information:
Quality:
- Appearance: 5-Bromo-2,3-diaminopyridine is white to light yellow crystalline or crystalline powder.
- Solubility: The compound is slightly soluble in water and has good solubility in organic solvents.
Use:
- 5-Bromo-2,3-diaminopyridine is commonly used as a reagent in organic synthesis reactions.
- It can be used as an intermediate in the synthesis of coordination compounds or catalysts.
Method:
The preparation of 5-bromo-2,3-diaminopyridine can be achieved by the following steps:
1. Dissolve 2,3-diaminopyridine in dilute hydrochloric acid first.
2. Sodium nitrite is then added to form nitroso compounds.
3. Under ice water bath conditions, potassium bromide is added to form 5-bromo-2,3-diaminopyridine.
Safety Information:
- 5-Bromo-2,3-diaminopyridine is an organic compound that should be stored and used properly to avoid contact with skin and eyes.
- When operating, good laboratory safety measures should be taken, such as wearing appropriate protective equipment (e.g., gloves, glasses, lab coat, etc.).
- Handle the compound in such a way as to avoid any hazards caused by inhalation, ingestion, or contact.
In chemical research and experiments, it is important to do a good job of laboratory safety management and operate according to the guidance of professionals.
