5-Chloro-4-hydroxy pyridinone-2
2(1H)-Pyridinone,3-chloro-4-hydroxy-(9CI)
CAS: 103792-81-0
Molecular Formula: C5H4ClNO2
5-Chloro-4-hydroxy pyridinone-2 - Names and Identifiers
5-Chloro-4-hydroxy pyridinone-2 - Physico-chemical Properties
| Molecular Formula | C5H4ClNO2 |
| Molar Mass | 145.54 |
| Density | 1.56 |
| Melting Point | 310 °C (decomp) |
| Boling Point | 283 ºC |
| Flash Point | 125 ºC |
| Vapor Presure | 0.00412mmHg at 25°C |
| pKa | 4.50±1.00(Predicted) |
| Storage Condition | Room Temprature |
| Refractive Index | 1.617 |
| MDL | MFCD11101041 |
5-Chloro-4-hydroxy pyridinone-2 - Introduction
3-Chloro-2, 4-dihydroxypyridine is an organic compound with the chemical formula C5H4ClNO2, often abbreviated as 3-Cl-2,4-DHP. The following is an introduction to some of its properties, uses, methods and safety information:
Nature:
1. Appearance: 3-chloro-2, 4-dihydroxypyridine is a colorless to pale yellow crystalline solid.
2. Melting point: Its melting point is about 228-230 degrees Celsius.
3. Solubility: 3-chlorine -2, 4-dihydroxypyridine has low solubility in water, but it can be dissolved in organic solvents such as alcohol, ether, etc.
Use:
1. Pesticide: 3-Chloro-2, 4-dihydroxypyridine is a broad-spectrum pesticide that can be used to control pests on a variety of agricultural crops.
2. Medicine: It is also used as a pharmaceutical intermediate and can be used to synthesize other compounds with medicinal value.
Preparation Method:
3-Chloro-2, 4-dihydroxypyridine is mainly prepared by the following methods:
1. Hydroxylation method: it is obtained by reacting 2,4-dihydroxypyridine with cuprous chloride, and then further hydroxylation with silver chloride.
2. Hydroxychlorination method: it is obtained by reacting 2,4-dihydroxypyridine with cuprous chloride under the catalysis of stannous chloride.
3. hydroxylation-chlorination method: by reacting 2,4-dihydroxypyridine with sodium chlorite to obtain an intermediate product, and then reacting with chlorous acid and sodium chloride for hydroxylation.
Safety Information:
The following points should be noted when using 3-chloro-2, 4-dihydroxypyridine:
1. Avoid direct contact: gloves and protective glasses should be used when handling 3-chloro-2, 4-dihydroxypyridine to avoid skin and eye irritation or damage.
2. storage note: 3-chlorine -2, 4-dihydroxypyridine should be stored in a dry, cool place, away from fire and oxidant, avoid high temperature and direct sunlight.
3. Toxic effects: 3-chloro-2, 4-dihydroxypyridine has certain toxicity, and long-term exposure or exposure may cause health effects. Relevant safety data should be read carefully before use and chemical safety procedures should be strictly followed.
Nature:
1. Appearance: 3-chloro-2, 4-dihydroxypyridine is a colorless to pale yellow crystalline solid.
2. Melting point: Its melting point is about 228-230 degrees Celsius.
3. Solubility: 3-chlorine -2, 4-dihydroxypyridine has low solubility in water, but it can be dissolved in organic solvents such as alcohol, ether, etc.
Use:
1. Pesticide: 3-Chloro-2, 4-dihydroxypyridine is a broad-spectrum pesticide that can be used to control pests on a variety of agricultural crops.
2. Medicine: It is also used as a pharmaceutical intermediate and can be used to synthesize other compounds with medicinal value.
Preparation Method:
3-Chloro-2, 4-dihydroxypyridine is mainly prepared by the following methods:
1. Hydroxylation method: it is obtained by reacting 2,4-dihydroxypyridine with cuprous chloride, and then further hydroxylation with silver chloride.
2. Hydroxychlorination method: it is obtained by reacting 2,4-dihydroxypyridine with cuprous chloride under the catalysis of stannous chloride.
3. hydroxylation-chlorination method: by reacting 2,4-dihydroxypyridine with sodium chlorite to obtain an intermediate product, and then reacting with chlorous acid and sodium chloride for hydroxylation.
Safety Information:
The following points should be noted when using 3-chloro-2, 4-dihydroxypyridine:
1. Avoid direct contact: gloves and protective glasses should be used when handling 3-chloro-2, 4-dihydroxypyridine to avoid skin and eye irritation or damage.
2. storage note: 3-chlorine -2, 4-dihydroxypyridine should be stored in a dry, cool place, away from fire and oxidant, avoid high temperature and direct sunlight.
3. Toxic effects: 3-chloro-2, 4-dihydroxypyridine has certain toxicity, and long-term exposure or exposure may cause health effects. Relevant safety data should be read carefully before use and chemical safety procedures should be strictly followed.
Last Update：2024-04-09 19:05:44
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View History
5-Chloro-4-hydroxy pyridinone-2
2-氯-D-扁桃酸甲酯
CERIUM(IV) OXIDE-CALCIUM
乙硫酸鈉
CYPRODINIL PESTANAL, 250 MG
EPOXIDIZED SOY BEAN OIL ACRYLATE
磷酸三(2-氯乙基)酯
2-溴异丁酰胺
METHYL 5-BROMO-2-IODOBENZOATE
Palladium(II) sulfate
2-氯-D-扁桃酸甲酯
CERIUM(IV) OXIDE-CALCIUM
乙硫酸鈉
CYPRODINIL PESTANAL, 250 MG
EPOXIDIZED SOY BEAN OIL ACRYLATE
磷酸三(2-氯乙基)酯
2-溴异丁酰胺
METHYL 5-BROMO-2-IODOBENZOATE
Palladium(II) sulfate