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HCID 8580Erstellt: 25. Oktober 2026

1-Nitroso-2-naphthol

CI NO 10005 · Cobalt reagent · zelenmoridlova4 · Compound Fr12178 · Zelen moridlova 4 · 1-Nitroso-2-phthol · Nitroso-2-Naphthol · Nitroso-β-naphthol

https://huagongshe.com/de/chemical/8580

Molekülstruktur von 1-Nitroso-2-naphthol

Identifikatoren & physikalische Daten

CAS No.131-91-9
SummenformelC10H7NO2
Durchschnittliche Molmasse173,17 g/mol
Monoisotopische Masse173,04767847 g/mol
SMILESO=Nc1c(O)ccc2ccccc12
InChIKeyYXAOOTNFFAQIPZ-UHFFFAOYSA-N
PubChem CID8580
ChEBICHEBI:194993
EC No.205-043-0
DTXSIDDTXSID9059622
Lokaler Name1-Nitroso-2-naphthol

Chemische & physikalische Eigenschaften

XLogP2,3
Polarare Oberfläche (TPSA)49,7
H-Brücken-Donoren1
H-Brücken-Akzeptoren3
Frei drehbare Bindungen0
Schwere Atome13
Formalladung0
Komplexität195
Dampfdruck0.0000911 [mmHg]
Physical DescriptionYellowish-brown solid[Merck Index] Brown powder[Alfa Aesar MSDS]
Schmelzpunkt106-108 °C (dec.) (lit.)
Siedepunkt303.81°C (rough estimate)
Dichte1.2427 (rough estimate)
Brechungsindex1.5200 (estimate)
LagerbedingungenKeep in dark place,Sealed in dry,Room Temperature
pKa (Säurekonstante)7.87±0.10(Predicted)
Aggregatzustandcrystalline
Farbetan to brown
Löslichkeitinsoluble
Merck14,6641
BRN776947
InChI1S/C10H7NO2/c12-9-6-5-7-3-1-2-4-8(7)10(9)11-13/h1-6,12H
InChIKeyYXAOOTNFFAQIPZ-UHFFFAOYSA-N
SMILESOc1ccc2ccccc2c1N=O
CAS Datenbank131-91-9(CAS DataBase Reference)
NIST chemische Informationen2-Naphthalenol, 1-nitroso-(131-91-9)
EPA chemische Informationen2-Naphthalenol, 1-nitroso- (131-91-9)

Sicherheit & Vorschriften

GHS-EinstufungWarningH302 (95.7%): Harmful if swallowed [Warning Acute toxicity, oral]H315 (95.7%): Causes skin irritation [Warning Skin corrosion/irritation]H319 (95.7%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]H335 (93.6%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposureRespiratory tract irritation]H400 (12.8%): Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard]P261, P264, P264+P265, P270, P271, P273, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P337+P317, P362+P364, P391, P403+P233, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 47 reports by companies from 7 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.
Regulatorische InformationenChemical: 2-Naphthalenol, 1-nitroso-2-Naphthalenol, 1-nitroso-: Does not have an individual approval but may be used under an appropriate group standard
GefahrenübersichtA skin and strong eye irritantHarmful by ingestion[Alfa Aesar MSDS] See 2-Nitroso-1-naphthol.
Hazard Classes and CategoriesAcute Tox. 4 (95.7%)Skin Irrit. 2 (95.7%)Eye Irrit. 2A (95.7%)STOT SE 3 (93.6%)Aquatic Acute 1 (12.8%)
F8
Wassergefährdungsklasse (WGK)3
TSCA-Inventar-StatusTSCA listed
UN-TransportnummerUN3077
Zollcode29089000
RTECS-Nr.QL4725000
R-Sätze (R)22-36/37/38-33-20/21/22
ToxizitätLDLo orl-rat: 500 mg/kg NCNSA6 5,35,53
GefahrensymboleXn
Sicherheitshinweise (S)26-36-45
Gefahrenklasse9Acute Tox. 4 OralEye Irrit. 2Muta. 2Skin Irrit. 2Skin Sens. 1
VerpackungsgruppeIII
Lagerklasse11 - Combustible Solids

Anwendungen & Verwendung

Verwenden

1-Nitroso-2-naphthol as a complexing agent for the on-line preconcentration of cobalt with FI-FAAS. 1-Nitroso-2-naphthol is the chelating ion-exchanger in the synthesis of alumina adsorbents that are of acidic, basic and neutral nature. It is used for the removal and preconcentration of Pb(II), Cu(II), Cr(III) from waste, as well as drinking water. It is also used in the preconcentration of cobalt using C(18) microcolumn with flow injection that is coupled to a flame atomic absorption spectrometry (FI-FAAS) system. 1-Nitroso-2-naphthol is used in the preparation of 1-nitroso-2-naphthol-sodium nitrite reagent.