| Identification | More | [Name]
1-Nitroso-2-naphthol | [CAS]
131-91-9 | [Synonyms]
1-NITROSO-2-NAPHTHOL
ALPHA-NITROSO-BETA-NAPHTHOL
CI NO 10005
LABOTEST-BB LT00068477
TIMTEC-BB SBB009148
1,2-Napthtoquinone 1-oxime
1-Nitroso-2-naftol
1-nitroso-2-naphthaleno
1-Nitroso-2-naphthalenol
1-nitroso-2-naphtho
2-Naphthol, 1-nitroso-
alpha-Nitroso-beta-naftol
alpha-Nitrosonaphthol
Nitroso-beta-naphthol
Zelen moridlova 4
zelenmoridlova4
α-Nitroso-β-nophthol
1-nitroso-2-naphthol (alpha-beta)
1-nitrosonaphthalen-2-ol
2-Hydroxy-1-nitrosonaphthalene | [EINECS(EC#)]
205-043-0 | [Molecular Formula]
C10H7NO2 | [MDL Number]
MFCD00003884 | [Molecular Weight]
173.17 | [MOL File]
131-91-9.mol |
| Chemical Properties | Back Directory | [Appearance]
brown powder | [Melting point ]
106-108 °C (dec.) (lit.) | [Boiling point ]
303.81°C (rough estimate) | [density ]
1.2427 (rough estimate) | [refractive index ]
1.5200 (estimate) | [storage temp. ]
Keep in dark place,Sealed in dry,Room Temperature | [Colour Index ]
10005 | [form ]
crystalline
| [pka]
7.87±0.10(Predicted) | [color ]
tan to brown
| [Water Solubility ]
insoluble | [Merck ]
14,6641 | [BRN ]
776947 | [Uses]
Organic synthesis, prevention of gum formation
in gasoline, dye intermediate, analytical reagent. | [CAS DataBase Reference]
131-91-9(CAS DataBase Reference) | [NIST Chemistry Reference]
2-Naphthalenol, 1-nitroso-(131-91-9) | [EPA Substance Registry System]
131-91-9(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
Xn | [Risk Statements ]
R22:Harmful if swallowed.
R36/37/38:Irritating to eyes, respiratory system and skin .
R33:Danger of cumulative effects.
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) . | [RIDADR ]
UN3077 | [WGK Germany ]
3
| [RTECS ]
QL4725000
| [F ]
8 | [TSCA ]
Yes | [HazardClass ]
9 | [PackingGroup ]
III | [HS Code ]
29089000 | [Toxicity]
LDLo orl-rat: 500 mg/kg NCNSA6 5,35,53 |
| Hazard Information | Back Directory | [Chemical Properties]
brown powder | [Definition]
ChEBI: 1-Nitroso-2-naphthol is a member of naphthols. | [Safety Profile]
Moderately toxic by ingestion.Many nitroso compounds are carcinogens. Ignites whenheated to 124°C. Mutation data reported. When heated todecomposition it emits toxic fumes of NOx. | [Purification Methods]
Crystallise the naphthol from pet ether (b 60-80o, 7.5mL/g). [Beilstein 7 H 712, 7 IV 2419.] |
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