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5-hydroxy-2-methylnaphthalene-1,4-dione (Molecular Formula: C11H8O3)
Product Name: 5-hydroxy-2-methylnaphthalene-1,4-dione
CAS Registry Number: 481-42-5
EINECS: 207-569-6  
Synonyms: 2-Methyljuglone; 481-42-5; Plumbaein;5-Hydroxy-2-methyl-1,4-naphthoquinone; Plumbagone; 2-Methyl-5-hydroxy-1,4-naphthoquinone; Plumbagine;5-hydroxy-2-methylnaphthalene-1,4-dione;
Molecular Structure:
Molecular Formula: C11H8O3
Molecular Weight: 188.17942
Density:  1.354g/cm3
Boiling Point:  383.9°C at 760 mmHg
Melting Point:  76-78 °C(lit.)
Flash Point:  200.2°C
Refractive index:  1.63
Risk Codes:  R23/24/25;
Safety Statements:  Poison by ingestion and intraperitoneal routes. Experimental reproductive effects. Mutation data reported. When heated to decomposition it emits acrid smoke and irritating fumes.
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