6-hydroxy-2-naphthaldehyde
6-hydroxy-2-naphthaldehyde
CAS: 78119-82-1
Molecular Formula: C11H8O2
6-hydroxy-2-naphthaldehyde - Names and Identifiers
6-hydroxy-2-naphthaldehyde - Physico-chemical Properties
| Molecular Formula | C11H8O2 |
| Molar Mass | 172.18 |
| Density | 1.288±0.06 g/cm3(Predicted) |
| Melting Point | 178-180 |
| Boling Point | 373.4±15.0 °C(Predicted) |
| Flash Point | 159.4°C |
| Vapor Presure | 4.18E-06mmHg at 25°C |
| Appearance | Solid |
| pKa | 8.60±0.40(Predicted) |
| Storage Condition | Keep in dark place,Sealed in dry,Room Temperature |
| Refractive Index | 1.719 |
| MDL | MFCD03427537 |
6-hydroxy-2-naphthaldehyde - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 52 - Harmful to aquatic organisms |
| Hazard Class | IRRITANT |
6-hydroxy-2-naphthaldehyde - Introduction
6-hydroxy-2-naphthaldehyde(6-hydroxy-2-naphthaldehyde) is an organic compound with the chemical formula C11H8O2 and a molecular weight of 172.18g/mol. The following is a description of the nature, use, preparation and safety information of 6-hydroxy-2-naphthaldehyde:
Nature:
6-hydroxy-2-naphthaldehyde is a yellow crystal with a melting point of about 122-124°C. It appears as an orange-yellow solution when dissolved in an organic solvent. It has an aromatic odor and is soluble in some organic solvents, such as ethanol and chloroform.
Use:
6-hydroxy-2-naphthaldehyde is widely used in organic synthesis. It is an intermediate for the synthesis of fluorescent dyes, photosensitive dyes and complexes. It can also be used as an important raw material in the fields of biological analysis reagents, optical materials and cosmetics.
Preparation Method:
There are many ways to prepare 6-hydroxy-2-naphthaldehyde, one of which is commonly used by cyclization and oxidation of 2-naphthol and sodium bisulfate under alkaline conditions. In the specific process, 2-naphthol is first reacted with sodium bisulfate under alkaline conditions to obtain the intermediate product 9-naphthol sodium. Then, the intermediate product is subjected to an oxidation reaction together with chlorine gas and a catalyst to obtain the target product 6-hydroxy-2-naphthaldehyde.
Safety Information:
6-hydroxy-2-naphthaldehyde is an organic compound and has a certain irritation. During use and operation, safe operating procedures should be followed to avoid contact with skin and eyes. During storage and transportation, care should be taken to prevent contact with fire and avoid exposure to direct sunlight.
Nature:
6-hydroxy-2-naphthaldehyde is a yellow crystal with a melting point of about 122-124°C. It appears as an orange-yellow solution when dissolved in an organic solvent. It has an aromatic odor and is soluble in some organic solvents, such as ethanol and chloroform.
Use:
6-hydroxy-2-naphthaldehyde is widely used in organic synthesis. It is an intermediate for the synthesis of fluorescent dyes, photosensitive dyes and complexes. It can also be used as an important raw material in the fields of biological analysis reagents, optical materials and cosmetics.
Preparation Method:
There are many ways to prepare 6-hydroxy-2-naphthaldehyde, one of which is commonly used by cyclization and oxidation of 2-naphthol and sodium bisulfate under alkaline conditions. In the specific process, 2-naphthol is first reacted with sodium bisulfate under alkaline conditions to obtain the intermediate product 9-naphthol sodium. Then, the intermediate product is subjected to an oxidation reaction together with chlorine gas and a catalyst to obtain the target product 6-hydroxy-2-naphthaldehyde.
Safety Information:
6-hydroxy-2-naphthaldehyde is an organic compound and has a certain irritation. During use and operation, safe operating procedures should be followed to avoid contact with skin and eyes. During storage and transportation, care should be taken to prevent contact with fire and avoid exposure to direct sunlight.
Last Update：2024-04-09 02:00:48
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