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Product Name: N-(4-Hydroxyphenyl)Maleimide
Synonyms: 4-(Maleimidophenol), 4-Hydroxyphenylmaleimide
Chemical Formula: C10H7NO3
CAS Number: 15790-95-9
Manufacturer: Details available upon request, contact supplier directly
Recommended Use: Specialty chemical, advanced research, material synthesis
Emergency Phone: Available on product packaging or upon inquiry
GHS Classification: Skin Irritant (Category 2), Eye Irritant (Category 2A), Acute Toxicity Oral (Category 4)
Signal Word: Warning
Hazard Statements: Causes skin irritation. Causes serious eye irritation. Harmful if swallowed. May cause respiratory tract irritation. Avoid breathing dust or fumes.
Symbol/Pictogram: Exclamation mark
Precautionary Statements: Wash hands thoroughly after handling. Wear protective gloves/eye protection. If in eyes: rinse cautiously with water. Remove contact lenses if present and easy to do. Seek medical attention if irritation persists. Do not eat, drink, or smoke when using this product.
Chemical Name: N-(4-Hydroxyphenyl)Maleimide
Common Name: 4-Hydroxyphenylmaleimide
CAS Number: 15790-95-9
Concentration: >98% by weight
Impurities: Trace residuals (≤1%) from synthesis including minor aromatic byproducts
Other Components: Not present at concentration requiring disclosure according to regulation
Inhalation: Move affected person to fresh air. If coughing or shortness of breath develops, seek medical attention. Keep victim calm and comfortable.
Skin Contact: Remove contaminated clothing immediately. Wash skin thoroughly with soap and water. Do not reuse garments until thoroughly cleaned. If irritation develops, consult a physician.
Eye Contact: Rinse cautiously with water for at least 15 minutes, holding eyelids open. Remove contact lenses if present. Obtain medical care if eye irritation persists.
Ingestion: Rinse mouth. Never give anything by mouth to an unconscious person. Do not induce vomiting; seek medical attention promptly.
Suitable Extinguishing Media: Dry chemical, carbon dioxide, foam, or water spray. Use extinguishing agent suitable for surrounding fire.
Hazardous Combustion Products: Emits toxic fumes including nitrogen oxides, carbon monoxide, and carbon dioxide.
Special Protective Equipment: Firefighters should wear full protective gear and self-contained breathing apparatus.
Unusual Fire Hazards: Dust may form explosive mixtures with air. Combustion can generate hazardous gases.
Fire-Fighting Instructions: Avoid inhaling smoke or vapors. Use water to cool exposed containers. Dispose of fire residues in accordance with local requirements.
Personal Precautions: Wear suitable protective clothing, gloves, and eye protection. Avoid dust formation. Ventilate area.
Environmental Precautions: Prevent product from entering drains, sewers, waterways, or soil.
Methods for Containment: Cover spill with inert absorbent like vermiculite or sand. Minimize dispersal of dust.
Cleanup Procedures: Collect spilled material in appropriate containers for disposal. Clean surface thoroughly after removal. Wash contaminated area with water and detergent.
Handling: Use only in well-ventilated areas. Avoid contact with skin, eyes, and clothing. Keep dust generation to a minimum. Do not breathe dust or fumes. Handle away from food and drinks. Practice good industrial hygiene.
Storage Conditions: Store in tightly closed containers in a cool, dry, well-ventilated location away from incompatible substances such as oxidizers and strong acids. Protect from moisture and direct sunlight. Maintain original packaging.
Packaging Materials: Use containers made of glass, polyethylene, or compatible plastics, properly sealed.
Special Advice: Regularly inspect stored containers for signs of leaks or damage.
Occupational Exposure Limits: No established threshold limit value; minimize exposure as good practice.
Engineering Controls: Use local exhaust ventilation to control airborne contaminants. Install eyewash stations and safety showers in area of use.
Personal Protection: Wear chemical-resistant gloves (nitrile preferred), safety goggles, and lab coats. Higher risk tasks may require face shield and respiratory protection (NIOSH-approved respirator).
Hygiene Measures: Wash hands, forearms, and face thoroughly after handling. Remove contaminated clothing.
Environmental Exposure: Prevent further leakage or spillage if safe to do so. Avoid release to the environment.
Appearance: Off-white to light tan crystalline powder
Odor: Slight, not distinctive
Odor Threshold: Not determined
pH: Not applicable (solid material)
Melting Point/Range: 174–178 °C
Boiling Point: Decomposes before boiling
Flash Point: Not available (solid)
Evaporation Rate: Not applicable
Flammability: May form combustible dust clouds
Explosive Limits: Data not available
Vapor Pressure: Negligible at room temperature
Vapor Density: Not applicable
Relative Density: ~1.35 g/cm³ at 25 °C
Solubility: Slightly soluble in water, more soluble in organic solvents (acetone, DMSO)
Partition Coefficient (n-octanol/water): Not determined
Autoignition Temperature: Not determined
Decomposition Temperature: >200 °C
Viscosity: Not applicable (solid)
Chemical Stability: Stable under normal conditions and recommended use.
Reactive Hazards: Reacts with strong acids, strong bases, and oxidizers.
Conditions to Avoid: Excessive heat, moisture, dust generation, open flame.
Incompatible Materials: Strong oxidizing agents, strong acids.
Hazardous Decomposition Products: Nitrogen oxides, carbon monoxide, carbon dioxide.
Polymerization: Not expected under normal storage conditions.
Acute Toxicity—Oral: Estimated LD50 (rat) >200 mg/kg
Skin Corrosion/Irritation: Causes skin irritation in animal studies, mild to moderate severity
Serious Eye Damage/Irritation: Causes eye irritation, risk of serious damage with direct contact
Respiratory or Skin Sensitization: No conclusive data available, minimize repeated exposure.
Carcinogenicity: No data available for this compound as a known or suspected carcinogen.
Mutagenicity: Information not conclusive, structure suggests low risk based on analogs.
Reproductive Toxicity: No available data.
STOT—Single Exposure: Possible respiratory tract irritation
STOT—Repeated Exposure: No data available
Aspiration Hazard: Not expected under normal use.
Symptoms: Irritation of respiratory tract, coughing, skin redness, eye discomfort, nausea if ingested.
Ecotoxicity: Limited data, avoid uncontrolled release to the environment. Use care near waterways. Potential to affect aquatic organisms if discharged in large amounts.
Persistence and Degradability: Degradation in soil and water slow, may persist in the environment.
Bioaccumulative Potential: Not expected to bioaccumulate significantly.
Mobility in Soil: Moderately mobile; runoff may carry to water sources under improper disposal.
Other Adverse Effects: Avoid unintentional discharge, follow all local and national environmental guidelines.
Disposal Methods: Collect and dispose of waste in accordance with all federal, state, and local regulations. Use a licensed chemical disposal contractor. Incineration recommended for large quantities.
Contaminated Packaging: Handle empty containers as hazardous. Rinse thoroughly before recycling or disposing.
Special Precautions: Do not discharge to surface water, sewers, or soils. Avoid uncontrolled land disposal.
UN Number: Not classified as dangerous goods under transport regulations
Proper Shipping Name: N-(4-Hydroxyphenyl)Maleimide
Transport Hazard Class: Not regulated
Packing Group: Not applicable
Marine Pollutant: Not determined but avoid release to aquatic systems
Special Precautions: Ensure containers are intact, sealed, and clearly labeled during transport. Protect from moisture and direct sunlight.
TSCA Status: Listed or compliant as per inventory notification
EINECS Number: 239-866-5
REACH Status: Registration or notification may apply in European Union
SARA Title III: Not subject to reporting under Sections 302, 304, 311, 312, 313
California Proposition 65: Not listed
WHMIS Classification (Canada): May be subject to hazardous product regulations
Other Regulations: Check local, state, and national authorities for any specific restrictions or requirements
