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Chemical Name: 8-Methylisoquinoline
Common Synonyms: Not widely varied, mostly referred to by its chemical name
CAS Number: 3499-59-8, which helps researchers and workers find specific safety details in the literature
Appearance: This chemical shows up as a pale yellow to off-white solid in pure form, based on published lab reports
Intended Uses: Used mainly in laboratory synthesis and research, sometimes in pharmaceutical or chemical development
Main Hazards: Flammability is a concern since many isoquinoline derivatives carry some fire risk
Health Risks: Eyes and skin can show irritation after contact, cause headaches or nausea if inhaled too much
Signal Words: Some safety documentation calls for “Warning” labels, especially for untrained handlers
Potential Routes of Exposure: Dust inhalation, accidental skin or eye contact
Long-Term Effects: Not much public data speaks to chronic toxicity, but all similar nitrogen-containing aromatic compounds urge caution
Main Ingredient: 8-Methylisoquinoline, purity typically above 95% in synthetic batches for research
Impurities: Traces of related isoquinolines might turn up if the synthesis wasn’t perfectly selective
Molecular Formula: C10H9N
Molecular Weight: Approximately 143.2 g/mol
Eye Contact: Rinse immediately with plenty of water, keeping eyelids open, flush for several minutes
Skin Contact: Wash with soap and water, take off contaminated clothing
Inhalation: Move to fresh air, monitor for irritation or breathing trouble
Ingestion: Rinse mouth, drink water, seek prompt medical advice
Symptoms to Watch: Irritation, coughing, burning sensation on skin or eyes, mild headache
Suitable Extinguishing Media: Use dry chemical, carbon dioxide, foam, or water spray
Specific Hazards: Combustion may make toxic vapors like carbon monoxide and nitrogen oxides
Protective Equipment: Firefighters should gear up with self-contained breathing apparatus and chemical-resistant clothing
Precautions: Avoid breathing smoke, use equipment from a safe distance
Personal Precautions: Wear chemical goggles, lab coat, and gloves to avoid direct contact
Environmental Precautions: Block chemical from reaching drains and waterways
Clean-up Methods: Sweep up gently without raising dust, collect in a container for proper disposal
Ventilation: Make sure the area gets enough fresh airflow to reduce exposure risk
Handling: Always use personal protection, keep away from sources of ignition, avoid creating dust
Storage: Store in tightly closed containers, in dry, cool, well-ventilated locations, protect from light and heat
Separation: Keep apart from strong oxidizers, acids, and incompatible chemicals
Engineering Controls: Use local exhaust ventilation, fume hoods in labs
Personal Protection: Chemical-resistant gloves, safety goggles, and lab coats form the basic defense
Respiratory Protection: Use an approved respirator if powders or vapors might be present
Hygiene: Wash hands after handling, avoid eating or drinking near the bench
Appearance: Solid, pale yellow or off-white
Odor: Mild aromatic odor, not overpowering
Melting Point: Literature sources note around 54–56°C
Boiling Point: Higher than 200°C, though precise value is less thoroughly documented
Solubility: Limited in water, better in organic solvents like ethanol or dichloromethane
Vapor Pressure: Expected to be low at room temperature
Chemical Stability: Stable under normal conditions if stored as directed
Conditions to Avoid: High heat, humidity, direct sunlight, open flames
Incompatible Materials: Strong oxidizing agents may react aggressively
Decomposition Products: May release nitrogen oxides and carbon monoxide if burned or broken down
Likely Exposure Symptoms: Can irritate eyes, skin, or upper respiratory tract
No Reliable Long-Term Data: Limited studies on chronic toxicity; most laboratory use relies on prudent avoidance of exposure
Acutely Toxic? Not highly toxic in small amounts, but caution makes sense with all aromatic heterocycles
Sensitization: No reports documenting allergic sensitization
Persistence: Likely to degrade slowly
Bioaccumulation: No evidence points to significant bioaccumulation in aquatic life
Aquatic Toxicity: No strong data, but good practice avoids environmental release
Precautions: Never dispose into drains or bodies of water
Waste Disposal: Gather in sealed container; hand over to licensed chemical waste handler
Regulatory Restrictions: Follow local, regional, national waste regulations
Container Cleaning: Decontaminate before disposal or recycling
UN Number: No widespread classification, but treated as a regulated chemical
Hazard Class: Typically not assigned a transport hazard class, handle as laboratory chemical
Packing Instructions: Use well-sealed, properly labeled packaging
Transport Recommendations: Keep cool, avoid jostling, isolate from food and strong oxidizers
US Regulation: Not on common hazardous chemical lists, but always check latest rules
Global Compliance: Use bills of lading or shipping documents that match each country's requirements
Workplace Requirements: Safety training, MSDS accessible in workspaces, risk labeling
