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| | 4-Amino-1,8-naphthalic anhydride Basic information |
| | 4-Amino-1,8-naphthalic anhydride Chemical Properties |
| Melting point | 360 °C | | Boiling point | 501.4±33.0 °C(Predicted) | | density | 1.105 g/mL at 25 °C(lit.) | | storage temp. | Keep in dark place,Inert atmosphere,2-8°C | | form | powder | | pka | 1.15±0.20(Predicted) | | Appearance | Yellow to brown Solid | | InChI | InChI=1S/C12H7NO3/c13-9-5-4-8-10-6(9)2-1-3-7(10)11(14)16-12(8)15/h1-5H,13H2 | | InChIKey | QIXHMCMCFSNKOG-UHFFFAOYSA-N | | SMILES | C1(=O)OC(=O)C2=CC=C(N)C3=C2C1=CC=C3 | | CAS DataBase Reference | 6492-86-0(CAS DataBase Reference) |
| Hazard Codes | T | | Risk Statements | 45-20/21/22-36/37/38 | | Safety Statements | 53-22-26-36/37/39-45 | | WGK Germany | 3 | | RTECS | DE4081000 | | Storage Class | 6.1C - Combustible acute toxic Cat.3
toxic compounds or compounds which causing chronic effects | | Hazard Classifications | Acute Tox. 4 Dermal
Acute Tox. 4 Inhalation
Acute Tox. 4 Oral
Carc. 1B
Eye Irrit. 2
Skin Irrit. 2
STOT SE 3 |
| | 4-Amino-1,8-naphthalic anhydride Usage And Synthesis |
| Synthesis | 4-Azido-1,8-naphthalenedicarboxylic anhydride (CAS:1262149-88-1, 1.8 g, 7.6 mmol) was used as a raw material and dissolved in 100 mL of acetonitrile. Subsequently, sodium sulfide (6.5 g, 41 mmol) was added to the solution. The reaction mixture was heated to 60 °C and maintained at this temperature for 10 hours. After completion of the reaction, the mixture was cooled to room temperature and then slowly poured into ice water. The precipitate was collected by filtration and dried under vacuum to afford the target product 4-amino-1,8-naphthalenedicarboxylic anhydride as a yellow solid (1.3 g) in 80% yield. | | References | [1] Organic and Biomolecular Chemistry, 2015, vol. 13, # 13, p. 3931 - 3935
[2] RSC Advances, 2018, vol. 8, # 21, p. 11419 - 11423
[3] Patent: CN108069967, 2018, A. Location in patent: Paragraph 0011; 0048; 0051; 0052
[4] Journal of Molecular Structure, 2015, vol. 1102, p. 197 - 202
[5] Journal of Materials Chemistry B, 2018, vol. 6, # 18, p. 2860 - 2868 |
| | 4-Amino-1,8-naphthalic anhydride Preparation Products And Raw materials |
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