Product Name: Ar-C65691Aa
Synonyms: ARC-65, 691AA Compound
Recommended Use: Intermediate in specialty manufacturing
Manufacturer: Arclight Chemical Industries
Address: 245 Clemens Avenue, Greenville, NY 12980, USA
Contact Number: +1-800-452-4868
Emergency Contact: CHEMTREC 1-800-424-9300
Email: safety@arclightchem.com
Date of Issue: 2022-04-21
Revision Number: 3
Prepared by: Regulatory Affairs, Arclight Chemical Industries
GHS Classification: Acute toxicity (oral) Category 3, Skin irritant Category 2, Eye damage Category 1
Signal Word: Danger
Hazard Statements: Toxic if swallowed, Causes skin irritation, Causes serious eye damage
Pictograms: Skull and crossbones, Exclamation mark, Corrosive symbol
Precautionary Statements: Avoid breathing dust, fumes, gas; Wash hands and face after handling; Wear protective gloves and eye protection
NFPA Ratings: Health: 3, Flammability: 1, Instability: 1
Other Hazards: May cause respiratory tract irritation, Harmful to aquatic organisms
Chemical Name: 4-(Morpholin-4-yl)benzenesulfonyl chloride
CAS Number: 956323-91-4
Concentration: >98% by weight
Impurities: Contains trace residual solvents (<0.2% acetone, <0.1% dichloromethane)
Additives: None
Inhalation: Remove person to fresh air, Keep at rest, Seek medical attention if symptoms persist
Skin Contact: Immediately flush skin with plenty of soap and water for at least 20 minutes, Remove contaminated clothing, Call physician
Eye Contact: Rinse cautiously with water for several minutes, Remove contact lenses if present and easy to do, Continue rinsing, Seek medical help
Ingestion: Rinse mouth, Do not induce vomiting, Drink water if conscious, Get immediate medical advice
Symptoms: Burning sensation, Redness, Coughing, Eye pain
Suitable Extinguishing Media: Water spray, Alcohol-resistant foam, Dry chemical, Carbon dioxide
Unsuitable Media: Direct jet of water, May spread material
Specific Fire Hazards: Emits toxic fumes of HCl, SO2, and nitrous gases under fire conditions
Protective Equipment: Wear self-contained breathing apparatus, Full protective suit
Special Procedures: Move containers from fire if safe, Cool containers with flooding water
Explosion Data: No known explosive properties
Personal Protection: Evacuate area, Ventilate formation, Wear chemical-resistant gloves, goggles, and respirator
Spill Cleanup: Avoid dust generation, Scoop up spill with inert non-combustible absorbent (sand, earth), Wash spill site after material pickup
Environmental Precautions: Prevent further leakage, Avoid entry into drains or water courses
Disposal: Deposit collected material in suitable waste containers for chemical waste disposal
Reporting: Report significant releases to local environmental, health, and safety authorities
Handling Procedures: Handle in well-ventilated area, Avoid contact with skin, eyes, or clothing, Use personal protective equipment, Minimize dust, Do not eat, drink, or smoke near handling area
Storage Conditions: Store locked up, Keep tightly closed in original container, Store in cool (2-8°C), dry, and well-ventilated place, Avoid exposure to light, Separate from incompatible materials (strong acids, bases, oxidizers)
Handling Tools: Use dedicated utensils and containers, Clean spills immediately
Other Guidance: Maintain access to eyewash stations and safety showers
Occupational Exposure Limits: No OSHA PEL, No ACGIH TLV assigned; Manufacturer recommends 0.1 mg/m³ (ceiling)
Engineering Controls: Use local exhaust ventilation, Keep work area clean, Use closed systems where feasible
Personal Protective Equipment: Chemical-resistant gloves (nitrile), Protective goggles and face shield, Lab coat or apron, Respirator (P2 or greater) in case of dust formation
Hygiene Measures: Wash hands thoroughly after use, Remove contaminated clothing and wash before reuse, Prohibit eating or drinking near product
Monitoring Procedures: Environmental and personal monitoring recommended in production sites
Appearance: Off-white crystalline powder
Odor: Slightly pungent, sulfurous
Odor Threshold: Not established
pH (1% solution): 3.9
Melting Point: 131-135°C
Boiling Point: Decomposes before boiling
Flash Point: Not flammable
Evaporation Rate: Not applicable
Flammability: Not classified as flammable
Lower/Upper Explosion Limits: Not determined
Vapor Pressure: Negligible at 20°C
Vapor Density: Not determined
Relative Density: 1.42 g/cm³ at 25°C
Solubility: Slightly soluble in water (5 g/L at 20°C), Soluble in acetone, chloroform
Partition Coefficient (n-Octanol/Water): Log Kow ≈ 0.7
Auto-ignition Temperature: Not self-igniting
Decomposition Temperature: >155°C
Molecular Weight: 269.73 g/mol
Chemical Stability: Stable under standard conditions of temperature and pressure, Sensitive to moisture and light
Reactivity: Reacts with water to release hydrochloric acid gas, Incompatible with strong oxidizing agents, Reducing agents, Strong bases
Possibility of Hazardous Reactions: Violent reaction with acids and bases, Hazardous decomposition products include SO2, NOx, HCl
Conditions to Avoid: High humidity, Prolonged exposure to air, Temperatures above 135°C
Incompatible Materials: Ammonia, Alkaline substances, Bleach solutions
Hazardous Decomposition Products: Sulfur dioxide, Nitrogen oxides, Hydrogen chloride
Acute Toxicity: Oral LD50 (rat) 48 mg/kg
Skin Corrosion/Irritation: Causes redness, blistering upon contact (rabbit test)
Eye Damage: Irreversible eye injury observed in animal models
Respiratory Effects: Inhalation may trigger burning sensation, cough, difficulty breathing
Chronic Exposure: May lead to sensitization, Dermatitis, Asthma-like symptoms
Carcinogenicity: Not listed by IARC, ACGIH, NTP, or OSHA
Reproductive Toxicity: No data for reproductive effects
Other Health Effects: Not mutagenic or teratogenic based on available studies
Aquatic Toxicity: Harmful to aquatic life
Persistence and Degradability: Moderately biodegradable in soil and water
Bioaccumulative Potential: Low potential for bioaccumulation (Log Kow < 1)
Mobility in Soil: Will bind to soil components, Potential for run-off in heavy rains
Other Ecological Effects: Avoid release to environment, May disrupt invertebrate populations
Ecotoxicity Test Results: EC50 (Daphnia magna, 48h): 37 mg/L
Other Details: Ozone depletion potential and global warming potential negligible
Waste Treatment Methods: Dispose in accordance with local, state, and federal regulations
Recommended Disposal: Send to licensed chemical disposal contractor, Incineration preferred method
Contaminated Packaging: Rinse with neutralizing solution before disposal, Dispose as hazardous waste
National Regulations: Classified as hazardous waste under RCRA (US), Use regulatory code D002
Special Disposal Precautions: Do not discharge into drains, Soil, or surface waters
UN Number: UN 3261
Proper Shipping Name: Corrosive solid, acidic, organic, n.o.s. (contains 4-(Morpholin-4-yl)benzenesulfonyl chloride)
Transport Hazard Class: 8 (Corrosive substances)
Packing Group: II
Environmental Hazards: Marine pollutant
Special Precautions: Avoid contact with incompatible substances, Label all shipments as corrosive
Transport Labels Required: Corrosive (Class 8), Marine pollutant if shipped by sea
Emergency Response Guide: Guide 154 (UN shipping guidelines)
Additional Info: Keep separate from food or feedstuffs during transport, Document all shipments in accordance with IMDG and IATA regulations
Regulation Compliance: OSHA Hazard Communication Standard (29 CFR 1910.1200), SARA Title III Section 313, TSCA inventory status: listed, REACH compliant (EU: 1907/2006/EC)
Labeling Requirements: GHS-compliant labels needed for workplace containers, Containers over 1L require Corrosive and Acute Toxicity icons
Right-To-Know Reporting: Listed in New Jersey, Pennsylvania, Massachusetts RTK lists
International Inventories: EINECS/ELINCS (EU): listed, DSL (Canada): listed, AICS (Australia): listed, Chemical Weapon Convention: Not listed
Proposition 65 (California): No ingredients listed
Other Regulations: Not regulated as controlled drug precursor
