1,4-Naphthalenedione,5-hydroxy-2-methyl- cas no:481-42-5
Synonyms: 1,4-Naphthoquinone,5-hydroxy-2-methyl- (7CI,8CI);Plumbagin (6CI);2-Methyl-5-hydroxy-1,4-naphthalenedione;2-Methyl-5-hydroxy-1,4-naphthoquinone;2-Methyljuglone;5-Hydroxy-2-methyl-1,4-naphthoquinone;NSC 236613;NSC 688284;Plumbagine;Plumbagone;
Name1,4-Naphthalenedione,5-hydroxy-2-methyl-
CAS481-42-5
Synonyms1,4-Naphthoquinone,5-hydroxy-2-methyl- (7CI,8CI);Plumbagin (6CI);2-Methyl-5-hydroxy-1,4-naphthalenedione;2-Methyl-5-hydroxy-1,4-naphthoquinone;2-Methyljuglone;5-Hydroxy-2-methyl-1,4-naphthoquinone;NSC 236613;NSC 688284;Plumbagine;Plumbagone;
EINECS(EC#)207-569-6
Molecular FormulaC11H8O3
Molecular Weight188.19
Appearanceorange crystalline powder or crystals
refractive index1.63
storage temp−20°C
Globally Harmonized System of Classification adn Labelling of Chemicals(GHS)
Hazardclass6.1(a)
Hazard T
Risk R23/24/25
Safety
Poison by ingestion and intraperitoneal routes. Experimental reproductive effects. Mutation data reported. When heated to decomposition it emits acrid smoke and irritating fumes.
Hazard Codes 
T
Risk Statements 25-34
R25 :Toxic if swallowed.
R34:Causes burns.
Safety Statements 22-26-36/37/39-45
S22:Do not breathe dust.
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection.
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
RIDADR UN 2923 8/PG 2
WGK Germany 3
RTECS QL8500000
Hazard Note Toxic
HazardClass 6.1(a)
PackingGroup II
| 1. |
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mma-sat 100 µg/plate
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MUREAV Mutation Research. 124 (1983),25. |
| 2. |
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mmo-esc 500 µmol/L
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JOBAAY Journal of Bacteriology. 164 (1985),1309. |
| 3. |
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orl-rat LD50:65 mg/kg
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IJMRAQ Indian Journal of Medical Research. 65 (1977),829. |
| 4. |
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orl-mus LD50:16 mg/kg
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IJEBA6 Indian Journal of Experimental Biology. 18 (1980),876. |
| 5. |
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ipr-mus LD50:5 mg/kg
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85GDA2 CRC Handbook of Antibiotic Compounds, Volumes 1-9. 8 (1)(1982),73. |
