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Pyrogallol is an organic compound with the formula C6H3(OH)3. It is a water-soluble, white solid although samples are typically brownish because of its sensitivity toward oxygen.[3] It is one of three isomers of benzenetriols.

GHS Hazard Statements

• H302: Harmful if swallowed [Warning Acute toxicity, oral]

• H312: Harmful in contact with skin [Warning Acute toxicity, dermal]

• H332: Harmful if inhaled [Warning Acute toxicity, inhalation]

• H341: Suspected of causing genetic defects [Warning Germ cell mutagenicity]

• H412: Harmful to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]

First Aid

Eyes: Remove contact lenses if present, then flush eyes with water or saline for 20-30 minutes. Do not apply any substances without a physician's guidance. Seek medical attention immediately after flushing, regardless of symptoms.

Skin: Immediately rinse affected skin with water and remove contaminated clothing. Cleanse the skin with soap and water. If symptoms like irritation or redness appear, contact a physician and prepare for hospital transport.

Inhalation: Exit the contaminated area and breathe fresh air. If symptoms such as wheezing or coughing occur, seek medical advice and be ready to go to the hospital. Use appropriate respiratory protection, ideally a Self-Contained Breathing Apparatus (SCBA).

Ingestion: Do not induce vomiting. If conscious and not convulsing, give water to dilute the chemical and contact medical services immediately. If the victim is unconscious or convulsing, ensure the airway is clear, position them appropriately, and seek immediate medical transport (NTP, 1992)

National Toxicology Program, Institute of Environmental Health Sciences, National Institutes of Health (NTP). 1992. National Toxicology Program Chemical Repository Database. Research Triangle Park, North Carolina

Chemical and Physical Properties

Computed Properties

Source: PubChem