2,3-Naphthalenedicarboxylic Anhydride
Appearance- Product Name
- 2,3-Naphthalenedicarboxylic Anhydride
- CAS No.
- 716-39-2
- Chemical Name
- 2,3-Naphthalenedicarboxylic Anhydride
- Synonyms
- EA253;2,3-NAPHTHALI;2,3-NAPHTHALIC ANHYDRIDE;naphtho[2,3-c]furan-1,3-dione;benzo[f][2]benzofuran-1,3-dione;benzo[f]isobenzofuran-1,3-quinone;2,3-Napthalenedicarboxycanhydride;2,3-NAPHTHALENEDICARBOXYLIC ANHYDRIDE;2,3-NaphthalenedicarboxylicAnhydride>1,3-Dihydronaphtho[2,3-c]furan-1,3-dione
- CBNumber
- CB9286597
- Molecular Formula
- C12H6O3
- Formula Weight
- 198.17
- MOL File
- 716-39-2.mol
2,3-Naphthalenedicarboxylic Anhydride Property
- Melting point:
- 246 °C
- Boiling point:
- 275-280 °C(Press: 100 Torr)
- Density
- 1.449±0.06 g/cm3(Predicted)
- storage temp.
- under inert gas (nitrogen or Argon) at 2-8°C
- solubility
- Chloroform (Slightly), Ethyl Acetate (Slightly)
- form
- Solid
- color
- Pale Beige
- Stability:
- Moisture Sensitive
- InChI
- InChI=1S/C12H6O3/c13-11-9-5-7-3-1-2-4-8(7)6-10(9)12(14)15-11/h1-6H
- InChIKey
- IZJDCINIYIMFGX-UHFFFAOYSA-N
- SMILES
- O1C(=O)C2=CC3C(C=C2C1=O)=CC=CC=3
- EPA Substance Registry System
- Naphtho[2,3-c]furan-1,3-dione (716-39-2)
Safety
- Safety Statements
- 22-24/25
- HS Code
- 2917.39.7000
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H332Harmful if inhaled
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- S876682
- Product name
- 2,3-NAPHTHALIC ANHYDRIDE
- Purity
- Aldrich
- Packaging
- 50mg
- Price
- $110
- Updated
- 2024/03/01
- Product number
- N0530
- Product name
- 2,3-Naphthalenedicarboxylic Anhydride
- Purity
- >95.0%(GC)(T)
- Packaging
- 25g
- Price
- $192
- Updated
- 2024/03/01
- Product number
- N0530
- Product name
- 2,3-Naphthalenedicarboxylic Anhydride
- Purity
- >95.0%(GC)(T)
- Packaging
- 250g
- Price
- $772
- Updated
- 2024/03/01
- Product number
- N363000
- Product name
- 2,3-NAPHTHALIC ANHYDRIDE
- Packaging
- 5g
- Price
- $100
- Updated
- 2021/12/16
- Product number
- N363000
- Product name
- 2,3-NAPHTHALIC ANHYDRIDE
- Packaging
- 1g
- Price
- $80
- Updated
- 2021/12/16
2,3-Naphthalenedicarboxylic Anhydride Chemical Properties,Usage,Production
Appearance
2,3-NAPHTHALENEDICARBOXYLIC ANHYDRIDE is a pale Beige Solid.
Description
A few years ago, the product was still synthesized from the corresponding diacid, but in recent years, it has been difficult to find the shadow of the diacid in the market, and the sales of this product have been repeatedly restricted, resulting in high prices.
Uses
2,3-Naphthalic anhydride is used as a reagent to synthesize analogues of Thalidomide (T338850), an inhibitor of tumour necrosis factor that was once abandoned because it caused birth defects, but is currently used as an inhibitor of angiogenesis in patients with multiple myeloma.
Preparation
Add anhydrous tetrahydrofuran (its mass ratio to maleic anhydride is 1.5:1), cat-1 (0.05 mole), maleic anhydride (1 mole), and o-phthalaldehyde (1.5 mole) to the reactor. After adding triethylamine (5 moles), adjust the temperature below -40°C. Silicon tetrachloride (4 moles) was added dropwise to the reaction system and the reaction was placed at -40 °C for 4 h. The mixture was heated to reflux for 20 h. After the end of the reaction, concentrating the solution to a certain concentration with diatomaceous earth filtration. A light yellow solid, namely 2,3-Naphthalenedicarboxylic Anhydride, is obtained by precipitation, filtration, recrystallization and drying. Its yield reaches 88%.
2,3-Naphthalenedicarboxylic Anhydride Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from 2,3-Naphthalenedicarboxylic Anhydride manufacturers
- Product
- 2,3-NAPHTHALENEDICARBOXYLIC ANHYDRIDE 716-39-2
- Price
- US $2.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- ask
- Release date
- 2018-12-20