1,4-Naphthoquinone
Agent Name
1,4-Naphthoquinone
CAS Number
130-15-4
Formula
C10-H6-O2
Major Category
Other Classes
Synonyms
1,4-Dihydro-1,4-diketonaphthalene; 1,4-Naftochinon [Czech]; 1,4-Naphthalenedione; 1,4-Naphthylquinone; alpha-Naphthoquinone; p-Naphthoquinone; [ChemIDplus] UN2811
Category
Other Aromatic Compounds
Description
Yellow solid with a pungent odor; [ICSC] "Begins to sublimes below 100 deg C." [Merck Index]
Sources/Uses
Used as a polymerization regulator, fungicide, algicide, and to make dyes and pharmaceuticals; [Hawley] Used as a chemical intermediate, corrosion inhibitor, and stabilizer for transformer oils; [HSDB]
Comments
A skin, eye, and respiratory tract irritant; [ICSC] Very toxic after ingestion, inhalation, or skin contact; Effects on experimental animals include somnolence, weight loss, liver injury, methemoglobinemia, tumors, and reproductive changes; [MSDSonline]
Biomedical References
Exposure Assessment
Vapor Pressure
0.00018 mm Hg
Lethal Concentration
LC50 (rat) = 46 mg/m3/4H
Explanatory Notes
LC50 from MSDSonline;
Adverse Effects
Methemoglobinemia
MetHgb is secondary toxic effect
Hepatotoxin
Hepatoxic (a) from occupational exposure (secondary effect) or (b) in animal studies or in humans after ingestion
Diseases, Processes, and Activities Linked to This Agent
Processes
Industrial Processes with risk of exposure: