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5-Amino-1-naphthol
1-AMINO-5-HYDROXYNAPHTHALENE · 5,1-ANL · C.I. 76650 · 5-Amino-1-phthol · 1-AMINO-5-NAPHTHOL · 5-AMINO-1-NAPHTHOL · 5-Amino-1-naphtho1 · 1-Naphthol, 5-amino-
Identifikatoren & physikalische Daten
| CAS No. | 83-55-6 |
|---|---|
| Summenformel | C10H9NO |
| Durchschnittliche Molmasse | 159,18 g/mol |
| Monoisotopische Masse | 159,06841391 g/mol |
| SMILES | Nc1cccc2c(O)cccc12 |
| InChIKey | ZBIBQNVRTVLOHQ-UHFFFAOYSA-N |
| PubChem CID | 65746 |
| ChEMBL | CHEMBL1852875 |
| EC No. | 201-486-9 |
| DTXSID | DTXSID1058894 |
| Lokaler Name | 5-Amino-1-naphthol |
Chemische & physikalische Eigenschaften
| XLogP | 1,5 |
|---|---|
| Polarare Oberfläche (TPSA) | 46,3 |
| H-Brücken-Donoren | 2 |
| H-Brücken-Akzeptoren | 2 |
| Frei drehbare Bindungen | 0 |
| Schwere Atome | 12 |
| Formalladung | 0 |
| Komplexität | 160 |
| Schmelzpunkt | 190 °C (dec.) (lit.) |
| Siedepunkt | 284.68°C (rough estimate) |
| Dichte | 1.1202 (rough estimate) |
| Brechungsindex | 1.6070 (estimate) |
| Lagerbedingungen | -20°C Freezer |
| Löslichkeit | DMSO (Slightly), Methanol (Slightly) |
| pKa (Säurekonstante) | 3.97(at 25℃) |
| Aggregatzustand | Solid |
| Farbe | Light Purple to Purple |
| InChI | InChI=1S/C10H9NO/c11-9-5-1-4-8-7(9)3-2-6-10(8)12/h1-6,12H,11H2 |
| InChIKey | ZBIBQNVRTVLOHQ-UHFFFAOYSA-N |
| SMILES | C1(O)=C2C(C(N)=CC=C2)=CC=C1 |
| CAS Datenbank | 83-55-6(CAS DataBase Reference) |
| NIST chemische Informationen | 5-Amino-1-naphthol(83-55-6) |
| EPA chemische Informationen | 1-Naphthalenol, 5-amino- (83-55-6) |
Sicherheit & Vorschriften
| GHS-Einstufung | WarningH315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]H335 (96.4%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposureRespiratory tract irritation]P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 55 reports by companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website. |
|---|---|
| Hazard Classes and Categories | Skin Irrit. 2 (100%)Eye Irrit. 2 (100%)STOT SE 3 (96.4%) |
| Wassergefährdungsklasse (WGK) | 3 |
| TSCA-Inventar-Status | TSCA listed |
| Zollcode | 29222990 |
| R-Sätze (R) | 36/37/38 |
| Gefahrensymbole | Xi |
| Sicherheitshinweise (S) | 26-37/39 |
| Lagerklasse | 11 - Combustible Solids |
| Gefahrenklasse | Eye Irrit. 2Skin Irrit. 2STOT SE 3 |
Herstellung & Synthese
synthetische
1-Aminonaphthalene-5-sulfonic acid paste (Section 6.2) is added to molten sodium hydroxide at 200°C, and the reaction is completed by heating slowly to 250°C and maintaining this temperature for 3 h. After dilution and careful neutralization with hydrochloric acid, 5-amino-1-naphthol precipitates in 85 % yield (mp 192°C).