Product Name: Red Quinone
Chemical Name: 2,5-Cyclohexadiene-1,4-dione, tetrahydroxy derivative
Common Synonyms: 1,4-Benzoquinone, Red; Tetrahydroxyquinone
CAS Number: 533-73-3
Manufacturer: Specialty Chemical Solutions Co.
Use of Substance: Laboratory reagent, intermediate for dyes and pigments, redox catalyst, corrosion inhibitor in industry
Contact Details: Emergency support: +1-800-555-1212
Classification: Acute toxicity (oral), Category 4; Skin irritation, Category 2; Eye irritation, Category 2A
Signal Word: Warning
Hazard Statements: Harmful if swallowed; causes skin irritation; causes serious eye irritation
Pictogram: Exclamation mark
Precautionary Statements: Avoid breathing dust and fume; wash skin thoroughly after handling; use gloves and eye protection; do not eat, drink, or smoke when using
Possible Health Effects: Symptoms may include redness, itching, or swelling on contact; ingestion can cause nausea, vomiting, diarrhea
Environmental Hazards: Harmful to aquatic life
Chemical Ingredient: Red Quinone
Concentration: 98-100%
Impurities: Trace phenolics (below 2 %), nonhazardous inert fillers
Molecular Formula: C6H4O4
Molecular Weight: 140.09 g/mol
Inhalation: Remove person to fresh air; seek medical attention if symptoms persist
Skin Contact: Rinse immediately with water for at least 20 minutes; remove contaminated clothing; wash before reuse; get medical help for persistent irritation
Eye Contact: Rinse cautiously with water for several minutes, lifting eyelids; remove contact lenses if present and easy to do; continue rinsing and seek medical attention
Ingestion: Rinse mouth, do not induce vomiting; give water to dilute if conscious; seek medical advice promptly
Suitable Extinguishing Media: Foam, dry chemical, carbon dioxide, water spray
Hazards from Combustion: May produce irritating, toxic fumes including carbon monoxide, carbon dioxide, quinone vapors
Protective Equipment: Self-contained breathing apparatus, full protective clothing
Advice for Firefighters: Evacuate area, fight fire from safe distance, avoid inhalation of fumes, prevent runoff from entering drains or waterways
Personal Precautions: Wear gloves, goggles, lab coat; ventilate area
Containment: Stop leak if safe; avoid raising dust
Clean-up Methods: Sweep or use HEPA vacuum for dry spill; collect in appropriate waste container; wipe area with damp cloth to remove residues
Environmental Precautions: Do not allow into drains, sewers, or waterways; inform local authorities if spill has entered environment
Handling: Work in chemical fume hood; avoid exposure to dust; wash thoroughly after handling
Storage: Store in a cool, well-ventilated place; keep containers tightly closed; protect from direct sunlight and heat; separate from food, drink, and incompatible substances like strong bases, oxidizers, reducing agents
Engineering Controls: Local exhaust ventilation; eyewash stations and safety showers available
Exposure Limits: No OSHA or ACGIH exposure limit established; minimize exposure nonetheless
Personal Protective Equipment: Nitrile gloves, chemical splash goggles, long-sleeve lab coat; use NIOSH-approved respirator if dust levels are high
Hygiene Measures: Wash hands before eating, drinking, smoking, or using restroom
Appearance: Red crystalline powder
Odor: Slight, phenolic
Odor Threshold: Not determined
pH: Slightly acidic in water (pH 4.5–5.5 at 1% solution)
Melting Point: 315–320°C
Boiling Point: Decomposes before boiling
Flash Point: Not applicable (non-volatile solid)
Flammability: Not easily flammable as powder; dust may form explosive mixtures with air
Vapor Pressure: Negligible
Solubility: Low solubility in water (<1 g/L at 20°C); soluble in ethanol, acetone
Density: 1.65 g/cm³
Partition Coefficient: log P (octanol/water) = 0.8
Chemical Stability: Stable under normal temperatures and pressures; decomposes with strong heat
Incompatibilities: Oxidizing agents, strong acids, reducing agents
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, toxic quinone fumes
Polymerization: Will not occur under normal conditions
Acute Toxicity: Oral LD50 (rats) — 430 mg/kg; skin/eye irritation observed in animal studies
Skin Contact: Causes moderate irritation, possible allergic reaction in sensitive persons
Eye Contact: Redness, tearing, blurred vision, significant irritation
Inhalation: Prolonged exposure may cause coughing, respiratory tract discomfort
Chronic Exposure: Not enough human data; long-term animal studies indicate possible liver, kidney effects
Carcinogenicity: Not classified as carcinogen by IARC, NTP, or OSHA
Mutagenicity: Negative in standard Ames bacterial tests
Ecotoxicity: Harmful to aquatic organisms at moderate concentrations (LC50 for fish = 49 mg/L, 96 hr)
Persistence and Degradability: Slow biodegradation under typical environmental conditions
Bioaccumulation Potential: Not appreciable (log Kow < 1)
Mobility in Soil: Low mobility, binds to soils and sediments
Other Effects: May temporarily discolor water bodies; monitor for quinone breakdown products
Waste Treatment: Collect waste in labeled, sealed containers for hazardous chemical disposal
Disposal Methods: Use licensed hazardous waste contractor
Special Precautions: Do not dispose with regular trash or pour into sewer systems; comply with local environmental regulations
UN Number: 2811
UN Proper Shipping Name: Toxic solid, organic, n.o.s. (Red Quinone)
Hazard Class: 6.1 (Toxic substance)
Packing Group: III
Label: Toxic
Special Transport Notes: Keep away from foodstuffs; avoid rough handling and impact; ensure integrity of container
Global Inventories: Listed on TSCA US, EINECS, DSL, and ENCS
OSHA Hazards: Target organ effect, harmful by ingestion
SARA Title III: Not subject to Section 313 reporting
California Proposition 65: Not listed
Labeling Requirements: Compliant with GHS (Globally Harmonized System) as per country-specific adaptations
