Chemical Name: 2-Methylanthraquinone
Common Names: 2-Methyl-9,10-anthraquinone, Quinalizarin Yellow
CAS Number: 84-54-8
Molecular Formula: C15H10O2
Molecular Weight: 222.24 g/mol
Intended Use: Dye intermediate, organic synthesis, chemical research
Manufacturer/Supplier: Information provided on relevant labels or purchase documentation
Emergency Telephone: Listed on disposal and shipping classification sheets
GHS Classification: Not classified as hazardous according to GHS standards
Hazard Statements: May cause minor eye and skin irritation on prolonged contact; low acute toxicity if inhaled or ingested
Precautionary Statements: Avoid unnecessary skin and eye contact; do not inhale dust
Pictograms: No symbol required
Signal Word: None
Hazards Not Otherwise Classified: Fine dust may form explosive mixtures with air in high concentrations; dust may irritate respiratory system; limited environmental hazard in small quantities but can disrupt aquatic life if significant release occurs
Chemical Name: 2-Methylanthraquinone
Content: ≥98% (w/w) pure substance
Impurities: Trace residues of related anthraquinones possible, always below reporting thresholds
Synonyms: Methyl anthraquinone, C.I. 75228
Substances with Occupational Exposure Limit: No occupational exposure limits set specifically for this compound
Additives: No stabilizers, solvents, or other additives included in the supplied product
Inhalation: Remove to fresh air without delay; seek medical advice if symptoms like coughing or shortness of breath persist
Skin Contact: Wash off thoroughly with soap and water; remove contaminated clothing; seek medical attention if irritation develops
Eye Contact: Rinse carefully for several minutes with water; remove contact lenses if present and easy to do; continue rinsing; consult a specialist if irritation continues
Ingestion: Rinse mouth, avoid inducing vomiting; drink water to dilute; seek immediate medical attention if large quantities consumed or if feeling unwell
Symptoms: Redness, itching, minor irritation to respiratory tract; rarely, stomach pain or nausea if ingested
Advice to Physicians: Treat symptomatically, observe for allergic reactions in sensitive individuals
Suitable Extinguishing Media: Water spray, dry chemical powder, foam, or carbon dioxide
Unsuitable Extinguishing Media: High-pressure water jets may spread the material
Special Hazards Arising from Substance: Thermal decomposition can release carbon monoxide, carbon dioxide, and potentially irritant organic fumes
Protective Equipment: Wear self-contained breathing apparatus and full protective suit
Fire-Fighting Instructions: Move containers from fire area if safe to do so; prevent run-off from entering drains; use extinguishing agents appropriate for surrounding fires
Hazardous Combustion Products: Carbon oxides, methylated aromatic compounds
Personal Precautions: Avoid contact with skin, eyes, and clothing; avoid inhalation of dust; wear appropriate PPE, including gloves, eye protection, and mask
Environmental Precautions: Keep spilled material out of sewers, watercourses, and soil; contact regulatory authorities if contamination occurs
Containment Methods: Scoop up solid spill with non-sparking tools; collect into suitable, labeled containers for disposal
Clean Up: Wash area thoroughly with water after removal of bulk material; ventilate area adequately
Reporting: Report significant releases to local environmental or public health authorities if required
Precautions for Safe Handling: Use in well-ventilated places; avoid raising dust; maintain good hygiene; keep away from open flames and hot surfaces
Storage Requirements: Store in tightly sealed containers in cool, dry, well-ventilated areas away from incompatible materials such as strong oxidizers
Incompatible Materials: Strong acids, bases, oxidizing agents
Special Packaging: Use corrosion-resistant containers; label clearly
Bulk Handling Advice: Limit dust generation; provide dust extraction at critical dust-producing points
Engineering Controls: Use local exhaust ventilation to minimize airborne dust; safety showers and eye wash stations recommended
Personal Protective Equipment: Safety goggles with side shields, chemical-resistant gloves (nitrile or PVC suggested), protective workspace clothing, dust mask or respirator recommended during prolonged exposure
Hygiene Measures: Do not eat, drink, or smoke in work areas; wash hands thoroughly after handling; remove contaminated clothing and clean before reuse
Exposure Limits: No established exposure limits for 2-Methylanthraquinone, observe limits for nuisance dusts (10 mg/m3 total; 3 mg/m3 respirable indoor recommended)
Environmental Controls: Use closed systems or minimize dust release; treat waste in accordance with environmental regulations
Appearance: Yellow crystalline powder
Odor: Odorless
Odor Threshold: Not applicable
pH: Insoluble in water, not determined
Melting Point: 181–183°C
Boiling Point: Decomposes before boiling
Flash Point: Above 200°C (closed cup)
Evaporation Rate: Not applicable
Flammability: Low combustibility; can burn above decomposition temperature
Vapor Pressure: Negligible at ambient temperature
Vapor Density: Not relevant
Solubility in Water: Practically insoluble
Solubility in Other Solvents: Soluble in aromatic organic solvents such as acetone, benzene
Partition Coefficient (log Kow): Estimated 3.4 – 4.2
Auto-Ignition Temperature: Not determined
Decomposition Temperature: Above 200°C
Viscosity: Not applicable (solid)
Chemical Stability: Stable under recommended storage conditions
Possible Hazardous Reactions: No hazardous polymerization
Incompatible Materials: Strong oxidizers, strong acids, strong bases
Conditions to Avoid: Heating above decomposition temperature, formation of dust clouds
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, organic compounds formed at high temperature
Acute Toxicity: Oral (rat) LD50 > 5000 mg/kg (low toxicity)
Skin Corrosion/Irritation: Can cause mild irritation with extended contact
Eye Damage/Irritation: May cause minor temporary irritation
Respiratory Sensitization: No data demonstrating potential
Skin Sensitization: Not expected to cause sensitization
Carcinogenicity: Not listed as carcinogen by IARC, NTP, OSHA
Mutagenicity: Not known to be mutagenic
Reproductive Toxicity: No evidence in available studies
Target Organ Toxicity: None identified from industrial or animal exposure
Symptoms of Overexposure: Mild skin, eye, or respiratory irritation; rare gastric discomfort if swallowed in quantity
Toxicity to Aquatic Life: Harmful to aquatic life in high concentrations; estimated LC50 (96h, fish) > 100 mg/L
Persistence and Degradability: Not rapidly biodegradable; expected to persist in the environment
Bioaccumulation Potential: Moderate; log Kow suggests potential for bioaccumulation
Mobility in Soil: Likely to adsorb to soils and sediments; mobility expected to be low
Other Adverse Effects: No known ozone depletion, photochemical ozone creation, or endocrine disruption properties
Disposal Methods: Dispose by incineration in accordance with local, state, or national regulations; do not release into waterways, drains, or environment
Contaminated Packaging: Rinse thoroughly, then offer for recycling or disposal according to local rules
Waste Codes: Assign as per local hazardous waste listings
Special Precautions: Observe all applicable regulations for safe handling and disposal; avoid dust dispersion during disposal operations
UN Number: Not regulated
Proper Shipping Name: Not regulated as hazardous for road, sea, or air by ADR/RID, IMDG, IATA
Transport Hazard Class: Non-hazardous
Packing Group: Not assigned
Environmental Hazards: Not designated as a marine pollutant
Precautions During Transport: Keep container tightly closed, protect from physical damage, store away from acids and oxidizers
OSHA Status: Not specifically regulated as hazardous under OSHA standards
SARA Title III: Not listed as a reportable material under Sections 302, 304, or 313
TSCA Inventory: Listed
EU Registration: Listed in EINECS; compliance with REACH required for imports
Canadian DSL/NDSL: Listed
Labeling Requirements: GHS-compliant labeling recommended in the workplace
Other Regulations: Not covered by major chemical weapon, drug precursor, or environmental blacklist conventions
