2,6-Dihydroxy-3-naphthalenecarboxylic acid
3,7-dihydroxy-2-naphthoic acid
CAS: 83511-07-3
Molecular Formula: C11H8O4
2,6-Dihydroxy-3-naphthalenecarboxylic acid - Names and Identifiers
| Name | 3,7-dihydroxy-2-naphthoic acid |
| Synonyms | 3,7-Dihydroxy-2-naphtoic acid 3,7-DIHYDROXY-2-NAPHTHOIC ACID 3,7-dihydroxy-2-naphthoic acid 2,6-Dihydroxy-3-Naphthoic acid 2,6-DIOXYNAPHTHALENE-3-CARBOXYLIC ACID 3,7-DIHYDROXY-2-NAPHTHALENECARBOXYLIC ACID 3,7-dihydroxynaphthalene-2-carboxylic acid 2,6-Dihydroxy-3-naphthalenecarboxylic acid 2,6-Dihydroxy-3-Naphthoic acid (3,7-Dihydroxy-2-naphthoic acid) |
| CAS | 83511-07-3 |
| InChI | InChI=1/C11H8O4/c12-8-2-1-6-5-10(13)9(11(14)15)4-7(6)3-8/h1-5,12-13H,(H,14,15) |
2,6-Dihydroxy-3-naphthalenecarboxylic acid - Physico-chemical Properties
| Molecular Formula | C11H8O4 |
| Molar Mass | 204.18 |
| Density | 1.535g/cm3 |
| Melting Point | 265 °C±10 °C (dec.) (lit.) |
| Boling Point | 442.2°C at 760 mmHg |
| Flash Point | 235.3°C |
| Vapor Presure | 1.35E-08mmHg at 25°C |
| Appearance | powder to crystal |
| Color | Light yellow to Brown |
| BRN | 3288005 |
| Storage Condition | Inert atmosphere,Room Temperature |
| Refractive Index | 1.761 |
| MDL | MFCD00010253 |
2,6-Dihydroxy-3-naphthalenecarboxylic acid - Risk and Safety
| Hazard Symbols | Xn - Harmful |
| Risk Codes | R22 - Harmful if swallowed R36 - Irritating to the eyes R38 - Irritating to the skin |
| Safety Description | 26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| WGK Germany | 3 |
| FLUKA BRAND F CODES | 9 |
2,6-Dihydroxy-3-naphthalenecarboxylic acid - Introduction
3,7-dihydroxy2-naphthoic acid is an organic compound with the chemical formula C11H8O4. It is a white to yellowish crystalline solid with an odor of phenol. The following is a description of its nature, use, preparation and safety information:
Nature:
-Appearance: White to yellowish crystalline solid.
-Melting point: about 240-242°C.
-Solubility: Poor solubility in water, soluble in alcohol, ethers and chloroform.
Use:
-chemical industry: used as organic synthesis and dye intermediates.
-Pharmaceutical: can be used to synthesize some antibiotics, anti-inflammatory drugs and anti-tumor drugs.
-Analytical chemistry: It can be used as an analytical reagent, for example, in the detection of phenolic compounds, it can form a color complex with iron ions.
Preparation Method:
- 3,7-dihydroxy-2-naphthoic acid is usually synthesized by the following reactions: First, 2-naphthalenone is reacted with nitric acid under the catalysis of acetic acid to generate 2-nitro-1-naphthalenone. The ketone compound is then reduced to 2-amino-1-naphthalenone, which undergoes an acylation reaction to give 3,7-dihydroxy-2-naphthoic acid.
Safety Information:
-3,7-dihydroxy-2-napthoic acid has low toxicity and will not cause significant health effects under normal use conditions.
-Wear appropriate personal protective equipment when handling chemicals, including gloves, protective glasses, and laboratory coats.
-Avoid contact with skin and eyes, and avoid inhaling dust or fumes.
-In case of accidental contact, rinse immediately with plenty of water and seek medical help.
Nature:
-Appearance: White to yellowish crystalline solid.
-Melting point: about 240-242°C.
-Solubility: Poor solubility in water, soluble in alcohol, ethers and chloroform.
Use:
-chemical industry: used as organic synthesis and dye intermediates.
-Pharmaceutical: can be used to synthesize some antibiotics, anti-inflammatory drugs and anti-tumor drugs.
-Analytical chemistry: It can be used as an analytical reagent, for example, in the detection of phenolic compounds, it can form a color complex with iron ions.
Preparation Method:
- 3,7-dihydroxy-2-naphthoic acid is usually synthesized by the following reactions: First, 2-naphthalenone is reacted with nitric acid under the catalysis of acetic acid to generate 2-nitro-1-naphthalenone. The ketone compound is then reduced to 2-amino-1-naphthalenone, which undergoes an acylation reaction to give 3,7-dihydroxy-2-naphthoic acid.
Safety Information:
-3,7-dihydroxy-2-napthoic acid has low toxicity and will not cause significant health effects under normal use conditions.
-Wear appropriate personal protective equipment when handling chemicals, including gloves, protective glasses, and laboratory coats.
-Avoid contact with skin and eyes, and avoid inhaling dust or fumes.
-In case of accidental contact, rinse immediately with plenty of water and seek medical help.
Last Update：2024-04-09 21:01:54
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CAS: 83511-07-3
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