Product Name: M-(4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl)Benzenesulphonic Acid
Synonyms: Pyrazole benzenesulfonic acid derivative
CAS Number: 152460-09-8
Recommended Use: Used in research, organic synthesis, dye intermediates
Manufacturer: Chemical supplier or laboratory
Contact Details: Emergency phone: +1-800-000-0000, info@labchemical.com
Address: 100 Science Blvd, Research City, State, ZIP, Country
GHS Classification: Acute Toxicity (Oral) Category 4, Eye Damage/Irritation Category 2A, Specific Target Organ Toxicity Single Exposure Category 3
Signal Word: Warning
Hazard Statements: Harmful if swallowed, causes serious eye irritation, may cause respiratory irritation
Pictograms: Exclamation mark
Precautionary Statements: Avoid breathing dust, wash hands after handling, use personal protective equipment as required, do not eat, drink or smoke near product, wear protective gloves and eye protection
Potential Health Effects: Eye, skin, and respiratory tract irritation; symptoms include redness, coughing, headache, and possible nausea
Chemical Name: M-(4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl)Benzenesulphonic Acid
Chemical Formula: C10H10N2O4S
Purity: Greater than 97% by weight
Impurities: None reported above 0.1% concentration threshold
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses, continue rinsing, seek medical advice if irritation persists
Skin Contact: Remove contaminated clothing, wash affected area with plenty of soap and water, consult a doctor if symptoms develop
Inhalation: Move exposed person to fresh air, keep at rest, seek medical attention if symptoms like shortness of breath or coughing occur
Ingestion: Rinse mouth, do not induce vomiting, drink water to dilute, immediately call a physician or poison center
Most Important Symptoms: Redness, pain or irritation to eyes, coughing, dry throat, headache
Medical Attention: Treat symptomatically and supportively
Suitable Extinguishing Media: Use water spray, carbon dioxide, dry chemical powder, or alcohol-resistant foam
Hazards from Combustion: Emits toxic fumes of nitrogen oxides, sulfur oxides, carbon monoxide, and carbon dioxide during fire
Protective Equipment for Firefighters: Wear self-contained breathing apparatus, full protective gear
Special Precautions: Keep containers cool with water spray, avoid inhaling combustion products, control run-off water to restrict environmental contamination
Personal Precautions: Evacuate non-essential personnel, wear protective gloves, goggles, lab coat, and particulate respirator in poorly ventilated areas
Environmental Precautions: Prevent product from entering drains, waterways, soils, and sewers
Containment Methods: Collect spilled solid with non-sparking tools, avoid generating dust
Clean-Up Procedures: Sweep up material and place in a suitable chemical waste container for disposal, ventilate area and wash contaminated surfaces
Safe Handling Recommendations: Use only in well-ventilated areas, minimize dust generation and contact with eyes and skin, do not eat, drink, or smoke around the substance, wash hands thoroughly after handling
Storage Conditions: Store in tightly closed original container, in a cool, dry, well-ventilated location away from direct sunlight, incompatible substances, moisture, and ignition sources
Special Storage Notes: Keep separate from oxidizers, bases, and strong acids
Engineering Controls: Handle within chemical fume hood or use local exhaust ventilation
Respiratory Protection: Use approved particulate respirator during dust formation or inadequate ventilation
Skin Protection: Wear chemical-resistant gloves, laboratory coat, protective apron
Eye Protection: Safety glasses with side shields or chemical splash goggles
Hygiene Measures: Always wash hands and face after handling, prohibit storage of food/drink in work area, remove contaminated clothing before entering eating areas
Exposure Limits: No known occupational exposure limits; minimize exposure as practicable
Appearance: Off-white to light beige crystalline solid
Odor: None or faint chemical odor
Odor Threshold: Not determined
pH: 3-5 (1% solution in water)
Melting Point: 180-187°C
Boiling Point: Decomposes before boiling
Flash Point: Not applicable (solid)
Flammability: Not flammable under normal conditions
Solubility: Soluble in water and methanol, low solubility in nonpolar solvents
Vapor Pressure: Not relevant at room temperature
Relative Density: 1.44 g/cm³
Partition Coefficient (n-octanol/water): Not available
Decomposition Temperature: Above 200°C with toxic fumes
Stability: Stable under recommended storage and handling conditions
Reactivity: No hazardous reactions expected under normal conditions
Incompatible Materials: Strong bases, strong oxidizing agents, acids
Hazardous Decomposition: Sulfur oxides, nitrogen oxides, carbon monoxide, carbon dioxide
Polymerization: No risk of hazardous polymerization noted
Acute Toxicity (Oral): Estimated LD50 (rat): 300-500 mg/kg
Skin Corrosion/Irritation: May cause skin irritation on prolonged contact
Serious Eye Damage/Irritation: Causes serious eye irritation - risk of lasting effects
Respiratory Sensitization: Can irritate respiratory tract
Carcinogenicity: No data indicating carcinogenic potential
Mutagenicity: Not classified as mutagenic; genetic effects not documented
Reproductive Toxicity: No specific data available; treat with caution
Chronic Effects: None reported in humans, but repeated exposure can lead to dermatitis or respiratory discomfort
Ecotoxicity: Harmful to aquatic organisms at moderate concentrations
Persistence and Degradability: Partial biodegradability reported, may persist in soil or water
Bioaccumulation: Potential for accumulation in aquatic species low to moderate
Mobility in Soil: Expected to be mobile in moist soil due to water solubility
Other Adverse Effects: Spills may disrupt aquatic and soil microflora
Waste Treatment Methods: Dispose of material via licensed chemical waste disposal contractor
Contaminated Packaging: Rinse thoroughly before recycling or dispose as hazardous waste
Special Disposal Notes: Follow local, regional, and national environmental regulations for disposal of chemical waste
Do Not: Release to environment, pour down the drain or mix with general laboratory waste
UN Number: Not classified as dangerous goods for transport by UN model regulations
Transport Hazard Class: Non-hazardous for air, road, rail, or sea
Packing Group: Not applicable
Special Transport Precautions: Prevent physical damage to containers, avoid temperature extremes, ensure proper labeling and documentation
Environmental Hazards: Not a marine pollutant by transport criteria
OSHA Status: Considered hazardous under criteria of US OSHA Hazard Communication Standard
TSCA Status: Listed or exempt
SARA Title III Sections 302/304, 311/312, 313: Not listed as an extremely hazardous substance
EU Classification (REACH/CLP): Hazardous to health; requires label elements and safety precautions
Other Regulations: Subject to chemical safety assessment by importing country; users must comply with local, state, and national requirements and notify relevant environmental authorities of significant spillages
