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Product Name: 4-Methyl-4-Pentylbiphenyl
Chemical Formula: C18H22
CAS Number: 69940-71-4
Recommended Use: Research, industrial synthesis, chemical reference
Supplier Details: Refer to manufacturer or lab for contact, emergency, and ordering information
Synonyms: 4-Pentyl-4’-methyl-1,1’-biphenyl
Classification: Not classified as hazardous under GHS; always handle with care
Physical Hazards: Flammable liquid, may release fumes on heating
Health Hazards: Potential irritation of eyes, skin, and respiratory tract; harmful if inhaled or swallowed at elevated exposures
Environmental Hazards: Likely persistence in aquatic environments; may bioaccumulate
Signal Word: Warning
Hazard Statements: Causes mild skin and eye irritation; suspected environmental hazard
Precautionary Statements: Avoid contact, inhalation, ingestion; use in ventilated area; use protective equipment
Emergency Overview: Colorless to pale yellow liquid with possible aromatic odor; flammable; avoid open flames
Chemical Name: 4-Methyl-4-Pentylbiphenyl
Common Name: No common trivial name
PURITY: ≥98% (dependent on supplier)
Impurities and Additives: Trace biphenyl homologs (<2%) may occur
Structural Formula: Biphenyl core with methyl and pentyl substituents
Molecular Weight: 238.37 g/mol
General Measures: Move person away from exposure and to fresh air
Inhalation: Remove to fresh air, monitor for respiratory distress; provide oxygen if breathing is difficult
Skin Contact: Wash area thoroughly with soap and rinsing water
Eye Contact: Rinse with plenty of water for at least 15 minutes; seek medical attention for persistent irritation
Ingestion: Do not induce vomiting; rinse mouth; seek prompt medical attention if symptoms manifest
Most Important Symptoms/Effects: Possible irritation to exposed tissues; monitor for secondary effects
Immediate Medical Care and Special Treatment Needed: Symptomatic care; advise healthcare provider of chemical exposure
Suitable Extinguishing Media: Carbon dioxide, dry chemical powder, foam, water spray
Unsuitable Extinguishing Media: Strong jets of water may spread fire
Specific Hazards: Emits carbon monoxide and carbon dioxide on combustion; flammable vapors possible
Firefighting Instructions: Evacuate area; avoid breathing fumes; use self-contained breathing apparatus (SCBA)
Protective Equipment: Full firefighting gear, positive-pressure SCBA
Special Precautions: Cool exposed containers with water spray; prevent run-off entering drains
Personal Precautions: Keep unprotected persons away; wear gloves, goggles, and protective clothing
Environmental Precautions: Prevent entry to soil, drains, water sources
Methods for Containment: Collect with absorbent (vermiculite, sand, universal binder); ventilate area
Cleanup Procedures: Remove with non-sparking tools; transfer waste to containers for disposal; wash area with water
Emergency Procedures: Contact local authorities for significant releases; follow spill protocol of facility
Precautions for Safe Handling: Use in chemical fume hood; avoid inhaling vapor, ingesting material, or skin contact; ground all equipment
Conditions for Safe Storage: Store in a tightly closed container, away from ignition sources, heat, and incompatible materials; keep in cool, dry, well-ventilated area
Incompatible Materials: Strong oxidizers, acids
Storage Temperature: Recommend 2–8°C; avoid direct sunlight
Advice on General Occupational Hygiene: Do not eat, drink, or smoke in working area; wash hands after handling
Control Parameters: No established OSHA or ACGIH exposure limits; use exposure minimization principles
Engineering Controls: Local exhaust ventilation, process enclosures recommended
Personal Protective Equipment: Safety glasses with side-shields, chemical-resistant gloves, lab coat, P2 type respirator for high vapor concentrations
Environmental Controls: Prevent material release to environment; provide spill kits
Hygiene Measures: Remove contaminated clothing; wash thoroughly after handling
Appearance: Colorless to pale yellow liquid
Odor: Mild aromatic
Melting Point: Approx. -20°C
Boiling Point: Approx. 325°C at 760 mm Hg
Flash Point: 140°C (closed cup)
Evaporation Rate: Not established
Flammability: Flammable liquid
Vapor Pressure: Low; <1 mm Hg at 20°C
Vapor Density: >1 (air = 1)
Solubility: Immiscible in water; solubility in organic solvents
Partition Coefficient (log Kow): Estimated >4
Autoignition Temp: 430°C
Decomposition Temp: Not established
Viscosity: Not measured
Reactivity: Stable under recommended storage and handling conditions
Chemical Stability: Stable under normal conditions; avoid extreme heat
Possibility of Hazardous Reactions: No dangerous reactions known under normal use
Conditions to Avoid: Open flames, sparks, oxidizing environments
Incompatible Materials: Strong oxidizing agents, strong acids
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, small-molecule hydrocarbons
Routes of Exposure: Inhalation, skin and eye contact, ingestion
Acute Toxicity: Low acute toxicity expected; data for biphenyl derivatives suggest low risk at typical exposures, but effects not fully characterized
Skin Corrosion/Irritation: Possible mild irritation
Serious Eye Damage/Irritation: May cause temporary discomfort
Respiratory Sensitization: Unlikely, but avoid aerosol or vapor exposure
Germ Cell Mutagenicity: No data supporting classification
Carcinogenicity: Not listed by IARC, NTP, or OSHA
Reproductive Toxicity: Not established
STOT (Specific Target Organ Toxicity) – Single/Repeated Exposure: Not expected at small scale use; monitor for headache, dizziness on vapors
Aspiration Hazard: Viscosity likely reduces aspiration risk
Ecotoxicity: Data sparse but biphenyl derivatives persist and may harm aquatic organisms
Persistence and Degradability: Likely slow natural breakdown; persistent in soil/sediment
Bioaccumulative Potential: Expected bioaccumulation due to log Kow >4
Mobility in Soil: Low aqueous solubility decreases groundwater risk, but accumulates in sediment
Other Adverse Effects: Potential impact on aquatic life at chronic exposures
Disposal Methods: Incineration at approved chemical waste facility; avoid landfill and sewer release
Container Disposal: Triple rinse then dispose through regulated chemical waste facility
Special Precautions for Disposal: Consult local regulations, responsible disposal limits polluting releases
Recommended Waste Codes: Use proper hazardous waste category; consult regulatory body
UN Number: Not regulated by most transportation agencies for small quantity shipments; confirm for bulk transports
UN Proper Shipping Name: Not classified for dangerous goods under IATA/IMDG
Transport Hazard Class: Not defined; check specific state/country rules
Packing Group: Not assigned
Marine Pollutant: Likely, conserve caution for shipping near waterways
Special Precautions for User: Protect from physical damage, ignition sources, improper handling
Safety, Health, Environmental Regulations: Not listed with OSHA hazardous substances or SARA Title III; not on California Proposition 65
TSCA Status: Should check commercial tracking inventory
EU Regulation: REACH registration may not apply to research/lab quantities
Other International Inventories: Status may vary; consult local regulations
Label Requirements: Safe handling, fire precautions, environmental protection cautions
