Product Name: (-)-di-p-Toluyl-L-tartaric acid
Synonyms: L-(+)-di-p-Toluoyl tartaric acid, DPTTA
CAS Number: 32634-68-7
Recommended Use: Chiral resolving agent in pharmaceutical and chemical synthesis
Manufacturer: Details should be sourced from supplier information or certificate
Contact Information: Emergency telephone and address must be obtained from the product distributor label
Relevant Identified Uses: Laboratory chemical, industrial use where enantiomer separation improves product purity and monitoring
GHS Classification: Not classified as hazardous under GHS criteria
Label Elements: None assigned under GHS
Potential Health Effects: Inhalation can lead to respiratory discomfort; contact with eyes or skin may result in mild irritation; ingestion may upset stomach
Routes of Exposure: Inhalation, skin, eyes, ingestion during handling, weighing, transfer
Precautionary Statements: Avoid dust formation; prevent contact with skin and eyes; ensure proper ventilation
Other Hazards: Substance contains aromatic groups; dust may cause mechanical respiratory or ocular irritation
Chemical Name: (-)-di-p-Toluyl-L-tartaric acid
CAS Number: 32634-68-7
Molecular Formula: C20H18O6
Molecular Weight: 354.36 g/mol
Purity: ≥ 98% by HPLC or titrimetric analysis
Impurities: Trace stereoisomeric and aromatic acid derivatives
Ingredient Percentages: Substance is supplied as pure or near pure material for research use
Inhalation: Move affected person to fresh air. Seek medical attention if irritation persists. Use respiratory support for severe exposure
Skin Contact: Remove contaminated clothing. Immediately wash skin with plenty of soap and water; consult physician if redness or discomfort develops
Eye Contact: Rinse cautiously with water for several minutes. Remove contact lenses. If irritation continues, seek ophthalmological advice
Ingestion: Rinse mouth thoroughly with water; do not induce vomiting unless directed by medical staff
General Advice: Provide label or MSDS to medical responders; whenever possible, describe exposure circumstances
Suitable Extinguishing Media: Use water spray, dry chemical powder, carbon dioxide, or foam; avoid direct water streams on solid chemical
Specific Hazards: Burning produces carbon monoxide, carbon dioxide, potentially aromatic hydrocarbons
Special Protective Equipment: Firefighters should carry self-contained breathing apparatus and protective clothing to reduce chemical exposure
Firefighting Instructions: Stay upwind. Avoid inhaling combustion gases; dike runoff to prevent environmental contamination
Personal Precautions: Wear suitable gloves, lab coat, eye protection, and dust mask if dust generation occurs
Environmental Precautions: Stop spillage from entering drains, soil, or surface waters; notify authorities if release threatens the environment
Cleanup Methods: Sweep or scoop up using non-sparking tools. Place collected waste in designated disposal containers; ventilate area to reduce dust spread
Decontamination: Wash area of spillage thoroughly with water and mild detergent
Handling: Minimize dust generation and accumulation; avoid breathing dust. Use local exhaust ventilation or appropriate respirator
Hygiene Measures: Wash hands after handling and before eating, smoking, or bathroom use
Storage Conditions: Store in a cool, dry, well-ventilated space. Keep container tightly closed and store away from acids, oxidizing agents, and strong bases
Incompatible Materials: Strong oxidants, concentrated mineral acids
Packaging Materials: Use chemical-resistant, sealed containers. Keep away from incompatible materials
Engineering Controls: Work in fume hood or with local exhaust ventilation; maintain adequate air exchanges
Workplace Exposure Limits: No established OSHA or ACGIH limits for this compound. Treat as nuisance dust. Follow standards for particulates not otherwise classified
Personal Protective Equipment: Nitrile gloves, safety goggles, chemical-resistant apron, and dust mask or respirator if dusting likely
Respiratory Protection: Use NIOSH-approved particulate respirator if airborne dust concentration is elevated
Environmental Controls: Prevent spills from entering drains or water bodies
Appearance: White to off-white crystalline powder
Odor: Odorless or slight aromatic characteristic
pH: Slightly acidic aqueous suspension
Melting Point: 195 - 198 °C
Boiling Point: Decomposes before boiling
Relative Density: 1.27 - 1.32 g/cm³
Solubility: Slightly soluble in cold water; freely soluble in ethanol and acetone
Partition Coefficient (Log Kow): Not determined experimentally; structurally, moderate partitioning expected
Vapor pressure: Negligible at room temperature
Evaporation Rate: Not applicable
Viscosity: Not applicable (solid)
Flash Point: >230°C (closed cup; estimated)
Chemical Stability: Stable under recommended storage conditions, dry and protected from light
Reactivity: Does not react with most common substances at room temperature
Possibility of Hazardous Reactions: Avoid strong oxidizing agents; violent reaction with concentrated nitric or sulfuric acids
Conditions to Avoid: Elevated temperatures, moisture, exposure to strong acids or bases
Hazardous Decomposition Products: Carbon oxides, aromatic compounds during thermal decomposition or fire
Acute Toxicity: Oral, dermal, and inhalation toxicity data not fully available; data from structurally similar compounds indicate low toxicity
Irritation: Prolonged or repeated contact may cause mild irritation to skin, eyes, and respiratory system
Respiratory Sensitization: No known reports in literature
Chronic Effects: No chronic exposure data available; repeated high dose unlikely under typical laboratory or plant conditions
Carcinogenicity, Mutagenicity, Reproductive Toxicity: No known classifications or data available; ingredient not listed by IARC, NTP, or OSHA
Other Data: Not considered sensitizing by skin contact
Ecotoxicity: Information limited; expected to have low toxicity due to weak solubility and moderate biodegradability
Persistence and Degradability: Expected to undergo slow degradation by soil microorganisms
Bioaccumulation Potential: Not likely to bioaccumulate because of water solubility and acidity
Mobility in Soil: Low — binds to soil particulates
Other Adverse Effects: Not classified as hazardous to the environment by current standards
Waste Treatment Methods: Incinerate in a chemical incinerator equipped with afterburner and scrubber; disposal in landfill permitted for non-hazardous chemical waste
Contaminated Packaging: Dispose as unused product, following local, regional, national, and international regulations
Special Precautions: Do not discharge to surface water or sewer systems; keep in marked chemical waste containers until proper disposal
UN Number: Not regulated as dangerous under UN transport codes
Proper Shipping Name: Not dangerous goods
Hazard Class: Not assigned
Packing Group: Not assigned
Special Precautions: Avoid release of dust during transport; pack in a way that prevents label damage and moisture ingress
United States (TSCA): Compound may be listed or required for registration; users should consult local supplier and compliance manuals
EU Regulation (REACH): Registration may apply for annual import or production over 1 tonne; check specific use scenarios
OSHA Hazards: Not considered hazardous under OSHA Hazard Communication Standard
WHMIS Classification (Canada): Not controlled product
Other Regulations: No DEA, DOT, or state restrictions known at preparation time, but regulatory landscape may shift
Labeling: Follow workplace chemical labeling rules; do not remove factory label
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