98027-27-1
5-Bromo-2-thiophenecarboxylic acid hydrazide
CAS: 98027-27-1
Molecular Formula: C5H5BrN2OS
98027-27-1 - Names and Identifiers
98027-27-1 - Physico-chemical Properties
| Molecular Formula | C5H5BrN2OS |
| Molar Mass | 221.07 |
| Density | 1.802g/cm3 |
| Melting Point | 149-151°C |
| Storage Condition | Room Temprature |
| Refractive Index | 1.652 |
98027-27-1 - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. |
| HS Code | 29349990 |
| Hazard Class | IRRITANT |
98027-27-1 - Introduction
The hydrazide acid is an organic compound whose chemical formula is C6H5BrN2O2S. Its properties are as follows:
1. Appearance: Colorless or light yellow crystalline solid.
2. solubility: can be dissolved in some organic solvents, such as chloroform, dimethyl sulfoxide and formic acid.
3. melting point: about 198-201 ℃.
The main uses of acid hydrazide include:
1. Intermediate: It can be used as an intermediate for the synthesis of drugs, dyes and pesticides.
2. Pesticide: Due to its special structure, it can be used to synthesize some pesticides to control the growth and reproduction of pests.
Preparation Method:
The acid hydrazide can be synthesized by the following steps:
1. First, add choline chloride and hydrobromic acid in dichloromethane.
2. Keep stirring at room temperature and allow the reaction to continue for 30 minutes.
3. Then, a bromine activator (such as benzene peroxide or trifluoroacetic acid oxygen) is added to the reaction system.
4. Continue the reaction for 30 minutes until the brominated intermediate is formed.
5. Finally, the reaction is interrupted by adding thionine and benzoyl peroxide, and acid hydrazide is obtained.
Safety Information:
when handling and storing acid hydrazide, please follow the following recommendations and precautions:
1. Avoid inhalation, ingestion and skin contact. Wear chemical safety glasses, gloves and goggles during operation.
2. Operate in a well-ventilated place to prevent aerosols, dust and vapor from entering the respiratory system.
3. Avoid contact with strong oxidants and high temperatures to avoid dangerous reactions.
4. Store in a dry, cool place, avoid direct sunlight.
5. When disposing of waste, properly dispose of it in accordance with local regulations.
1. Appearance: Colorless or light yellow crystalline solid.
2. solubility: can be dissolved in some organic solvents, such as chloroform, dimethyl sulfoxide and formic acid.
3. melting point: about 198-201 ℃.
The main uses of acid hydrazide include:
1. Intermediate: It can be used as an intermediate for the synthesis of drugs, dyes and pesticides.
2. Pesticide: Due to its special structure, it can be used to synthesize some pesticides to control the growth and reproduction of pests.
Preparation Method:
The acid hydrazide can be synthesized by the following steps:
1. First, add choline chloride and hydrobromic acid in dichloromethane.
2. Keep stirring at room temperature and allow the reaction to continue for 30 minutes.
3. Then, a bromine activator (such as benzene peroxide or trifluoroacetic acid oxygen) is added to the reaction system.
4. Continue the reaction for 30 minutes until the brominated intermediate is formed.
5. Finally, the reaction is interrupted by adding thionine and benzoyl peroxide, and acid hydrazide is obtained.
Safety Information:
when handling and storing acid hydrazide, please follow the following recommendations and precautions:
1. Avoid inhalation, ingestion and skin contact. Wear chemical safety glasses, gloves and goggles during operation.
2. Operate in a well-ventilated place to prevent aerosols, dust and vapor from entering the respiratory system.
3. Avoid contact with strong oxidants and high temperatures to avoid dangerous reactions.
4. Store in a dry, cool place, avoid direct sunlight.
5. When disposing of waste, properly dispose of it in accordance with local regulations.
Last Update：2024-04-09 21:04:16
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Product Name: 5-Bromothiophene-2-carboxylic acid hydrazide, 98% Visit Supplier Webpage Request for quotationCAS: 98027-27-1
Tel: +86-400-900-4166
Email: product@acmec-e.com
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Product Name: 5-Bromothiophene-2-Carbohydrazide Visit Supplier Webpage Request for quotation
CAS: 98027-27-1
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CAS: 98027-27-1
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