Product Name: L-(-)-Dianisoyl-tartaric acid
Chemical Formula: C18H16O10
CAS Number: 32634-68-7
Synonyms: (-)-Dianisoyl-L-tartaric acid, L(-)-(+)-Dianisoyl tartaric acid
Recommended Uses: Chiral resolving agent, laboratory reagent
Manufacturer Information: Refer to current product label for supplier contacts and emergency numbers
Classification: No GHS classification; not considered hazardous under OSHA regulations
Signal Word: None
Hazard Statements: May cause mild skin and eye irritation; inhalation of dust may cause respiratory tract irritation
Precautionary Statements: Avoid direct contact with skin, eyes, and clothing; handle in well-ventilated areas
Potential Health Effects: Exposure may result in transient irritation to the eyes, skin, and mucous membranes
Label Pictograms: No applicable pictograms specified
Chemical Name: L-(-)-Dianisoyl-tartaric acid
Purity: >99% (as typically supplied for laboratory work)
Impurities: Trace amounts of related tartaric acid derivatives
Ingredient CAS: 32634-68-7
EINECS/ELINCS No.: Not listed
Other Components: No other hazardous components identified
Inhalation: Move exposed person to fresh air. Seek medical advice if symptoms persist or worsen.
Skin Contact: Rinse affected skin with plenty of water and mild soap. Remove any contaminated clothing.
Eye Contact: Immediately flush eyes with water for at least 15 minutes, lifting upper and lower eyelids to ensure thorough rinsing. Consult an eye specialist if discomfort remains.
Ingestion: Rinse mouth with water. Never give anything by mouth to an unconscious person. Consult a doctor if substantial quantity has been ingested or if feeling unwell.
Special Notes for Physicians: No antidote; treat symptomatically and provide supportive care as indicated.
Suitable Extinguishing Media: Water spray, dry chemical powder, carbon dioxide, or foam extinguishers
Combustion Hazards: Produces carbon oxides (CO, CO2) and possible organic fumes under fire conditions
Special Protective Equipment: Firefighters should use full protective gear and approved self-contained breathing apparatus
Firefighting Procedures: Cool surrounding containers with water spray; prevent runoff from entering drains
Flammability: May burn if exposed to heat or flame but not highly flammable under standard storage conditions
Explosion Hazards: None known under normal use; fine dust may pose an explosion risk in confined or poorly ventilated areas
Personal Precautions: Wear protective gloves, eyewear, and dust mask; avoid generating airborne dust
Environmental Precautions: Prevent entry into drains, sewers, or water courses
Methods for Cleanup: Sweep up solid without raising dust; collect residue in a chemical waste container for proper disposal
Decontamination: Wipe surfaces with a damp cloth; wash area with soap and water after material is collected
Disposal of Collected Material: Dispose according to local and national hazardous waste regulations
Handling Practices: Use appropriate PPE, avoid contact with skin or eyes, and minimize dust formation
Workplace Hygiene: Wash hands thoroughly after handling; do not eat, drink, or smoke when using
Storage Conditions: Store in tightly closed containers in a cool, dry, well-ventilated area
Protection from Incompatibles: Keep separated from strong acids, bases, and oxidizing agents
Shelf Life: Stable for several years under recommended storage; minimize exposure to moisture to maintain granularity and chemistry
Engineering Controls: Work under local exhaust ventilation or chemical fume hood if dust is generated
Personal Protective Equipment: Wear chemical-resistant gloves (nitrile or neoprene), laboratory safety goggles, and lab coats
Respiratory Protection: Use NIOSH-approved particulate mask or respirator if handling powder in confined area
Hand Protection: Disposable gloves to minimize skin exposure
Eye Protection: Safety goggles or face shield to guard against splashes and airborne dust
General Safety Measures: Maintain eyewash stations and showers where product is handled regularly
Occupational Exposure Limits: None established for this compound; follow standard safety practices for laboratory chemicals
Appearance: White to off-white crystalline solid
Odor: Odorless or faint organic scent
Molecular Weight: 392.32 g/mol
Melting Point: 180-190°C (varies with purity and crystal form)
Solubility: Slightly soluble in water; more soluble in organic solvents (methanol, ethanol)
pH (aqueous): Slightly acidic (solution)
Boiling Point: Decomposes before boiling
Vapor Pressure: Negligible at room temperature
Partition Coefficient: Not available
Density: Approximately 1.45 g/cm3 at 20°C
Flash Point: No data found; not expected to pose significant fire risk under normal atmospheric conditions
Chemical Stability: Stable under ordinary temperature and pressure; avoid moisture and high humidity
Conditions to Avoid: Exposure to strong oxidizing agents, extreme heat, prolonged contact with light
Incompatible Materials: Strong acids, bases, and oxidizers
Hazardous Decomposition Products: May decompose at elevated temperature to produce carbon monoxide, carbon dioxide, and aromatic vapors
Polymerization: Not expected to occur
Acute Toxicity: Low oral toxicity based on available literature; not extensively studied in humans or animals
Skin Irritation: May cause mild and transient irritation based on structure and related compounds
Eye Irritation: Direct contact may result in redness or discomfort
Respiratory Sensitization: No data indicating sensitization; dust may cause transient irritation
Chronic Exposure: No chronic effects documented for prolonged low-level exposure
Carcinogenicity: Not listed by IARC, NTP, OSHA
Mutagenicity and Reproductive Effects: No studies found linking material to mutagenic or reproductive hazards at concentrations used in laboratory settings
Ecotoxicity: No specific ecotoxicological data available for this compound; expected to have low environmental mobility due to low solubility
Persistence and Degradability: Organic acid derivative expected to degrade slowly in soil and water under aerobic conditions
Bioaccumulation Potential: Low likelihood of significant bioaccumulation in aquatic organisms
Mobility in Soil: Limited mobility predicted based on low water solubility and molecular size
Aquatic Toxicity: Not expected to be hazardous to aquatic life at typical dilution in laboratory or industrial effluent
Other Adverse Effects: No ozone depletion or global warming potential reported for this substance
Waste Treatment Methods: Arrange disposal through a licensed hazardous waste contractor
Disposal of Product: Do not discharge into drains, surface water, or soil; segregate waste and include label indicating chemical identity
Disposal of Contaminated Packaging: Packaging should be emptied thoroughly and disposed of as chemical waste according to local ordinances
Additional Notes: Compliance with federal, state, and local regulations is mandatory; consult waste management authority for guidance
UN Number: Not regulated for transport
Transport Hazard Class: Not classified as a hazardous material under DOT, ADR/RID, IMDG, IATA
Packing Group: Not applicable
Marine Pollutant: Not considered a marine pollutant
Special Precautions: Transport in tightly sealed containers; avoid exposure to high humidity or contaminating substances
OSHA Status: Not listed as hazardous under US OSHA regulations
TSCA Status: Listed on US Toxic Substances Control Act inventory
SARA Title III: Not subject to reporting requirements
REACH Status: Not registered under EU REACH regulations, intended mainly for research and development
California Proposition 65: Not listed
Other International Inventories: Refer to local and national chemical inventories for additional regulatory compliance
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