Basic information
- Name:
1,4-Naphthalenedione,5-hydroxy-
- Superlist Name:
- 5-Hydroxy-1,4-naphthalenedione
- CAS No.:
481-39-0
- Molecular Structure:
- Formula:
- C10H6O3
- Molecular Weight:
- 174.15
- Synonyms:
- Juglone (6CI);1,4-Dihydro-1,4-dioxo-5-hydroxynaphthalene;8-Hydroxy-1,4-naphthoquinone;Akhnot;C.I. 75500;C.I.Natural Brown 7;NSC 153189;Natural Brown 7;
- EINECS:
- 207-567-5
- Density:
- 1.439 g/cm3
- Melting Point:
- 161-163 °C(lit.)
- Boiling Point:
- 385.8 °C at 760 mmHg
- Flash Point:
- 201.3 °C
- Solubility:
- soluble in hot water
- Appearance:
- Orange to brown crystalline powder
- Hazard Symbols:
T- Risk Codes:
- 25-36/37/38
- Safety Description:
- 22-26-36/37/39-45-37/39 Details
- Transport Information:
- UN 2811 6.1/PG 3
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Chemistry
Chemistry informtion about 5-Hydroxy-1,4-naphthalenedione (CAS NO.481-39-0) is:
IUPAC Name: 5-Hydroxynaphthalene-1,4-dione
Synonyms: 1,4-Naphthalenedione,5-hydroxy- ; 1,4-Naphthoquinone, 5-hydroxy- ; 1,4-Naphthoquinone, 8-hydroxy- ; 4-Naphthalenedione,5-hydroxy-1 ; 5-Hydroxy-1,4-naftochinon ; 5-hydroxy-4-naphthalenedione ; 5-hydroxy-4-naphthoquinone ; 5-Hydroxynaphthoquinone
MF: C10H6O3
MW: 174.15
EINECS: 207-567-5
Melting Point: 161-163 °C(lit.)
Density: 1.439 g/cm3
Flash Point: 201.3 °C
Boiling Point: 385.8 °C at 760 mmHg
Vapour Pressure: 1.67E-06 mmHg at 25°C
Enthalpy of Vaporization: 65.95 kJ/mol
Water Solubility: Soluble in hot water
Storage temp.: Refrigerator (+4°C)
Merck: 5269
Following is the molecular structure of 5-Hydroxy-1,4-naphthalenedione (CAS NO.481-39-0) is:
Production
Raw materials: N-Hydroxyphthalimide
Toxicity Data With Reference
| 1. | hma-mus/ast 10 mg/kg | PSEBAA Proceedings of the Society for Experimental Biology and Medicine. 126 (1967),583. | ||
| 2. | skn-mus TDLo:394 mg/kg/53W-I:NEO | JMCMAR Journal of Medicinal Chemistry. 21 (1978),26. | ||
| 3. | orl-mus LD50:2500 µg/kg | SCIEAS Science. 134 (1961),1617. |
Safety Profile
Poison by ingestion. Questionable carcinogen with experimental neoplastigenic data. Mutation data reported. When heated to decomposition it emits acrid smoke and irritating fumes.
Hazard Codes:
T: Toxic
Risk Statements:
R25: Toxic if swallowed.
R36/37/38: Irritating to eyes, respiratory system and skin.
Safety Statements:
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.)
S37/39: Wear suitable gloves and eye/face protection.
S28A: After contact with skin, wash immediately with plenty of water.
RIDADR: UN 2811 6.1/PG 3
WGK Germany: 3
RTECS: QJ5775000
HazardClass: 6.1
PackingGroup: III
Specification
5-Hydroxy-1,4-naphthalenedione (CAS NO.481-39-0) is a oange to brown crystalline powder.It i insoluble in water.
First Aid Measures:
Ingestion: Never give anything by mouth to an unconscious person. Get medical aid immediately. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
Inhalation: Get medical aid immediately. Remove from exposure to fresh air immediately. If breathing is difficult, give oxygen. Do not use mouth-to-mouth respiration if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device.
Skin: Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
Eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.
Handling and Storage:
Storage:Store in a tightly closed container. Store in a cool, dry area away from incompatible substances.
Handling: Wash thoroughly after handling. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Do not ingest or inhale. Use only in a chemical fume hood.
