isochromeno[6,5,4-def]isochromene-1,3,6,8-tetrone
naphthalene-1,4,5,8-tetracarboxylic acid
CAS: 81-30-1
Molecular Formula: C14H4O6
isochromeno[6,5,4-def]isochromene-1,3,6,8-tetrone - Names and Identifiers
| Name | naphthalene-1,4,5,8-tetracarboxylic acid |
| Synonyms | NTDA LT-S924 naphthalene-1,4,5,8-tetracarboxylic acid 1,4,5,8-Naphthalenetetracarboxylic dianhydride isochromeno[6,5,4-def]isochromene-1,3,6,8-tetrone Naphthalene-1,4,5,8-tetracarboxylic acid dianhydride |
| CAS | 81-30-1 |
| EINECS | 201-342-5 |
| InChI | InChI=1/C14H4O6/c15-11-5-1-2-6-10-8(14(18)20-12(6)16)4-3-7(9(5)10)13(17)19-11/h1-4H |
isochromeno[6,5,4-def]isochromene-1,3,6,8-tetrone - Physico-chemical Properties
| Molecular Formula | C14H4O6 |
| Molar Mass | 268.18 |
| Density | 1.79g/cm3 |
| Melting Point | >300℃ |
| Boling Point | 617°C at 760 mmHg |
| Flash Point | 280.4°C |
| Vapor Presure | 3.73E-15mmHg at 25°C |
| Appearance | Light Brown to Very Dark Brown Powder or Chunks |
| Storage Condition | Room Temprature |
| Sensitive | Easily absorbing moisture |
| Refractive Index | 1.781 |
| MDL | MFCD00006915 |
| Use | This product is for scientific research only and shall not be used for other purposes. |
isochromeno[6,5,4-def]isochromene-1,3,6,8-tetrone - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | R36/37/38 - 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 - Wear suitable protective clothing. |
isochromeno[6,5,4-def]isochromene-1,3,6,8-tetrone - Introduction
naphthalene-1,4,5,8-tetracarboxylic acid is an organic compound with the chemical formula C14H6O8. The following is a description of its nature, use, preparation and safety information:
Nature:
naphthalene-1,4,5,8-tetracarboxylic acid is a white solid, insoluble in water at room temperature, but soluble in organic solvents. It has a high melting point and stability.
Use:
naphthalene-1,4,5,8-tetracarboxylic acid has a wide range of applications in organic synthesis. It can be used as a raw material for dyes, pigments and high molecular polymers. In addition, it can also be used to prepare compounds with fluorescent properties, liquid crystal materials and electronic devices.
Preparation Method:
naphthalene-1,4,5,8-tetracarboxylic acid can be prepared in many ways. One common method is to obtain phenol through nitration and maleic anhydride reaction. The specific steps are: firstly, phenol is reacted with nitric acid to obtain nitrophenol, then naphthalene -1,4,5,8-tetracarboxylic acid is obtained through reduction, and finally the target product is obtained through an anhydridization reaction.
Safety Information:
naphthalene-1,4,5,8-tetracarboxylic acid is relatively safe for the human body under general conditions, but the following matters still need to be paid attention to: avoid inhaling dust or gas, and avoid contact with skin and eyes. Wear protective gloves and safety glasses during operation to ensure a well-ventilated experimental environment. In case of accidental contact, flush immediately with plenty of water and seek medical help. Follow proper laboratory procedures and storage requirements to ensure safe use of the compound.
Nature:
naphthalene-1,4,5,8-tetracarboxylic acid is a white solid, insoluble in water at room temperature, but soluble in organic solvents. It has a high melting point and stability.
Use:
naphthalene-1,4,5,8-tetracarboxylic acid has a wide range of applications in organic synthesis. It can be used as a raw material for dyes, pigments and high molecular polymers. In addition, it can also be used to prepare compounds with fluorescent properties, liquid crystal materials and electronic devices.
Preparation Method:
naphthalene-1,4,5,8-tetracarboxylic acid can be prepared in many ways. One common method is to obtain phenol through nitration and maleic anhydride reaction. The specific steps are: firstly, phenol is reacted with nitric acid to obtain nitrophenol, then naphthalene -1,4,5,8-tetracarboxylic acid is obtained through reduction, and finally the target product is obtained through an anhydridization reaction.
Safety Information:
naphthalene-1,4,5,8-tetracarboxylic acid is relatively safe for the human body under general conditions, but the following matters still need to be paid attention to: avoid inhaling dust or gas, and avoid contact with skin and eyes. Wear protective gloves and safety glasses during operation to ensure a well-ventilated experimental environment. In case of accidental contact, flush immediately with plenty of water and seek medical help. Follow proper laboratory procedures and storage requirements to ensure safe use of the compound.
Last Update：2024-04-10 22:29:15
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