| Identification | More | [Name]
1,2-NAPHTHOQUINONE | [CAS]
524-42-5 | [Synonyms]
1,2-NAPHTHALENEDIONE
1,2-NAPHTHOQUINONE
BETA-NAPHTHOQUINONE
NAPHTHOQUINONE, 1,2-
1,2-dihydro-1,2-diketo-naphthalene
1,2-Naftochinon
1,2-Naphthaquinone
o-Naphthoquinone
1,2-naphthoquinone (beta)
1,2-NAPHTHOQUINONE TECH 97%
1,2-Naphthoquinone, tech., 95%
NAPTHOQUINONE,1,2-(RG)
ORTHO-NAPHTHOQUINONE
1,2-NAPHTHOQUINONE TECH 95+%
1,2-Naphthoquinone, 95%,tech
1,2-Dihydronaphthalene-1,2-dione | [EINECS(EC#)]
208-360-2 | [Molecular Formula]
C10H6O2 | [MDL Number]
MFCD00001698 | [Molecular Weight]
158.15 | [MOL File]
524-42-5.mol |
| Chemical Properties | Back Directory | [Appearance]
brown powder | [Melting point ]
139-142 °C (dec.) (lit.) | [Boiling point ]
243.22°C (rough estimate) | [density ]
1.450 g/cm3 (25℃) | [refractive index ]
1.5300 (estimate) | [storage temp. ]
2-8°C
| [solubility ]
Chloroform (Slightly), DMSO (Slightly) | [form ]
Crystalline Mass or Waxy Solid | [color ]
Colorless or white to pale yellow | [Merck ]
6394 | [BRN ]
606546 | [Stability:]
Light Sensitive | [Uses]
Chemical reagent and intermediate. | [CAS DataBase Reference]
524-42-5(CAS DataBase Reference) | [EPA Substance Registry System]
1,2-Naphthoquinone (524-42-5) |
| Safety Data | Back Directory | [Hazard Codes ]
Xn,Xi,C,F | [Risk Statements ]
R22:Harmful if swallowed.
R36/37/38:Irritating to eyes, respiratory system and skin .
R34:Causes burns.
R11:Highly Flammable. | [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) .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S16:Keep away from sources of ignition-No smoking . | [RIDADR ]
2811 | [WGK Germany ]
3
| [RTECS ]
QL7000000
| [Hazard Note ]
Irritant | [HS Code ]
29146990 | [Hazardous Substances Data]
524-42-5(Hazardous Substances Data) |
| Hazard Information | Back Directory | [General Description]
Golden yellow needles or brown powder. Decomposes to a bluish-black color on standing. | [Reactivity Profile]
Ketones, such as 1,2-NAPHTHOQUINONE(524-42-5), are reactive with many acids and bases liberating heat and flammable gases (e.g., H2). The amount of heat may be sufficient to start a fire in the unreacted portion of the ketone. Ketones react with reducing agents such as hydrides, alkali metals, and nitrides to produce flammable gas (H2) and heat. Ketones are incompatible with isocyanates, aldehydes, cyanides, peroxides, and anhydrides. They react violently with aldehydes, HNO3, HNO3 + H2O2, and HClO4. | [Air & Water Reactions]
The neat chemical may be sensitive to prolonged exposure to air and light. Insoluble in water. | [Hazard]
Irritant | [Health Hazard]
ACUTE/CHRONIC HAZARDS: This compound is an irritant. When heated to decomposition it emits acrid smoke and fumes. | [Fire Hazard]
Flash point data for this chemical are not available. 1,2-NAPHTHOQUINONE is probably combustible. | [Chemical Properties]
brown powder | [Definition]
ChEBI: 1,2-naphthoquinone is the parent structure of the family of 1,2-naphthoquinones, in which the oxo groups of the quinone moiety are at positions 1 and 2 of the naphthalene ring. It is a metabolite of naphthalene and is found in diesel exhaust particles. It has a role as a carcinogenic agent and an aryl hydrocarbon receptor agonist. It derives from a hydride of a naphthalene. | [Synthesis Reference(s)]
Tetrahedron Letters, 25, p. 603, 1984 DOI: 10.1016/S0040-4039(00)99949-0
The Journal of Organic Chemistry, 51, p. 5390, 1986 DOI: 10.1021/jo00376a061 | [Purification Methods]
Crystallise the quinone from ether (red needles) or *benzene (orange leaflets). [Beilstein 7 IV 2417.] |
|
|