Product Name: 2-Phenylpropionic Acid
Synonyms: α-Methylhydrocinnamic acid; 2-Phenylpropanoic acid
CAS Number: 492-37-5
Molecular Formula: C9H10O2
Recommended Use: Laboratory chemical, manufacturing intermediate
Manufacturer: Refer to supplier details in commercial documentation
Emergency Contact: Local poison control center or emergency medical services
GHS Classification: Irritant to skin and eyes; may cause mild respiratory irritation
Signal Word: Warning
Hazard Statements: Causes skin irritation; causes serious eye irritation; may cause respiratory irritation
Pictograms: Exclamation mark
Precautionary Statements: Wash skin after handling; avoid breathing dust; wear eye protection; in case of contact with eyes, rinse thoroughly; if inhaled, move to fresh air
Chemical Name: 2-Phenylpropionic Acid
Concentration: ≥99%
CAS Number: 492-37-5
Impurities: Trace organics below 1% if technical grade
Other Components: None significant for hazard classification
Inhalation: Remove person to fresh air; seek medical attention if symptoms persist
Skin Contact: Wash with soap and plenty of water; remove contaminated clothing; consult physician if irritation develops
Eye Contact: Rinse eyes with water for at least 15 minutes; consult an ophthalmologist
Ingestion: Rinse mouth; do not induce vomiting; seek medical help if large amounts are swallowed
Most Important Symptoms: Redness, irritation of exposed areas; coughing; discomfort in upper respiratory tract
Suitable Extinguishing Media: Water spray, dry chemical, carbon dioxide, foam
Unsuitable Media: Direct high-pressure water streams
Specific Hazards: May release toxic fumes of carbon monoxide and carbon dioxide in case of fire
Protective Equipment: Firefighters should wear self-contained breathing apparatus and protective clothing
Special Precautions: Avoid inhaling vapors or fumes from combustion; respond from upwind area
Personal Precautions: Avoid contact with skin, eyes, clothing; ensure adequate ventilation; use personal protection equipment
Environmental Precautions: Prevent further leakage or spillage if safe; do not let product enter drains or waterways
Methods for Clean-up: Use inert absorbent material to collect the spill; sweep up and keep in suitable closed containers for disposal; wash spill area with water
Handling: Handle in accordance with good industrial hygiene; avoid dust formation; wash hands thoroughly after use
Storage: Store tightly closed in a dry, cool, and well-ventilated place; keep away from incompatible materials such as strong oxidizing agents
Storage Conditions: Recommended storage temperature below 30°C; avoid moisture; keep containers tightly sealed when not in use
Exposure Limits: No established national occupational exposure limits
Engineering Controls: Use local exhaust ventilation to limit exposure; provide eyewash stations
Personal Protective Equipment: Safety goggles, chemical-resistant gloves, lab coat, NIOSH-approved dust mask if workplace dust exceeds recommendations
Hygiene Measures: Wash hands before breaks and at end of work; remove contaminated clothing and wash before reuse
Appearance: White to off-white crystalline solid
Odor: Mild, characteristic fatty odor
pH (1% solution): Approx. 2.5 to 3.5
Melting Point: 47–49°C
Boiling Point: 265–267°C
Flash Point: 152°C (closed cup)
Solubility: Slightly soluble in water; readily soluble in alcohol and ether
Vapor Pressure: Negligible at room temperature
Density: 1.08 g/cm³
Partition Coefficient (log Kow): 1.85 to 2.00
Chemical Stability: Stable under recommended storage conditions
Reactivity: Not known to react dangerously in normal conditions
Incompatible Materials: Strong bases, strong oxidizers
Hazardous Decomposition: Combustion produces carbon oxides
Polymerization: Product does not undergo hazardous polymerization
Acute Toxicity: Oral LD50 (rat): >2000 mg/kg (estimated value); low acute health hazard
Potential Health Effects: Skin: Prolonged contact can cause irritation; Eyes: May cause irritation and redness; Inhalation: Can irritate respiratory tract; Ingestion: No serious effects expected in small amounts
Chronic Effects: No established data for carcinogenicity, mutagenicity, reproductive toxicity
Sensitization: Not classified as a skin or respiratory sensitizer
Ecotoxicity: Low expected toxicity in aquatic ecosystems; fish LC50 (96hr): >100 mg/L (estimated)
Persistence/Degradability: Expected to be biodegradable under conventional environmental conditions
Bioaccumulative Potential: Low based on moderate log Kow values; unlikely to accumulate in aquatic life
Mobility in Soil: Moderately mobile; slight leaching expected
Other Adverse Effects: No known significant effects or critical hazards
Waste Treatment Methods: Dispose of contents in accordance with local, regional, national, and international regulations
Recommended Disposal: Incinerate or landfill in a chemically safe manner
Container Handling: Triple-rinse containers; puncture and dispose in accordance with environmental authorities
UN Number: Not regulated for transport
Proper Shipping Name: Not classified as dangerous goods
Packing Group: Not assigned
Transport Hazard Class: Non-hazardous for air, sea, road, or rail dispatch
Special Precautions: Avoid transport with incompatible materials or foodstuffs
US TSCA: Listed
EU REACH: Pre-registered
Canada DSL/NDSL: Listed
OSHA Hazard Communication: Classified as irritant
Other International Inventories: Present in AICS, ENCS, KECI, PICCS
Labeling Requirements: Follow GHS classification and local regulations for handling and labeling
