Chemical Name: Dibenzoyl-(-)-P-methoxy-L-tartaric acid
Synonyms: (-)-O-Benzoyl-P-methoxy-L-tartaric acid, Dibenzoate derivative of P-methoxy tartaric acid
CAS Number: 62708-56-9
Recommended Use: Chiral resolving agent in chemical and pharmaceutical synthesis
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Hazard Class: Not classified as hazardous under GHS criteria
Physical Hazards: May form combustible dust concentrations in air
Health Hazards: May cause mild skin or eye irritation on repeated exposure
Environmental Hazards: Potentially harmful to aquatic environments with long-term exposure
Pictograms: None required
Signal Word: None
Component: Dibenzoyl-(-)-P-methoxy-L-tartaric acid
Concentration: ≥98% (by weight)
Chemical Formula: C19H16O9
Impurities: Minor related compounds (<2%)
Eye Contact: Rinse gently with plenty of water for several minutes, remove contact lenses if present and easy to do, continue rinsing, seek medical advice if irritation develops
Skin Contact: Wash with soap and plenty of water, remove contaminated clothing and wash before reuse, seek medical attention if rash appears
Inhalation: Move person to fresh air immediately, support breathing if needed, consult physician if symptoms persist
Ingestion: Rinse mouth with water thoroughly, seek medical attention if feeling unwell, do not induce vomiting unless instructed by medical personnel
Extinguishing Media: Water spray, dry chemical, CO₂, foam
Fire/Explosion Hazards: Fine dust can generate explosive mixtures with air, in case of fire hazardous gases like carbon monoxide and carbon dioxide may develop
Protective Equipment: Wear full protective gear and self-contained breathing apparatus
Special Procedures: Use water spray to cool unopened containers, prevent runoff from entering drains or watercourses
Personal Precautions: Avoid dust formation, ventilate the area, wear appropriate respiratory protection and gloves
Environmental Precautions: Prevent further leakage or spillage, avoid discharge into drains, sewers, or waterways
Methods for Cleanup: Collect spillage using sealed, labeled containers, sweep up or vacuum using HEPA filtration, avoid creating airborne dust, clean area with water after material pick-up
Precautions for Safe Handling: Handle in well-ventilated areas with local exhaust, avoid inhaling dust or fumes, wear appropriate PPE including goggles and gloves, do not eat or drink while handling
Storage Conditions: Store in tightly closed containers, keep in cool, dry, and well-ventilated environment away from incompatible materials such as strong oxidizers or acids, protect from moisture and direct sunlight, label containers clearly and store away from food and animal feed
Exposure Limits: No established occupational exposure limits
Engineering Controls: Use fume hood or local exhaust, maintain good general ventilation
Personal Protective Equipment: Safety goggles, chemical resistant gloves (nitrile or similar), long-sleeved lab coat or protective suit, NIOSH-approved dust mask or respirator if airborne concentration is high
Hygiene Measures: Wash hands thoroughly after handling, remove and wash contaminated clothing prior to re-use, do not eat, drink, or smoke during use
Appearance: White to off-white crystalline powder
Odor: Odorless or faint characteristic odor
Odor Threshold: Not available
pH: Slightly acidic in aqueous solution
Melting Point: 189–192°C
Boiling Point: Decomposes before boiling
Flash Point: Not established
Evaporation Rate: Not applicable
Flammability: May form combustible dust in air
Vapor Pressure: Negligible at room temperature
Solubility: Slightly soluble in water, soluble in ethanol and methanol
Partition Coefficient (n-octanol/water): Not determined
Vapor Density: Not applicable
Relative Density: 1.52 g/cm³
Decomposition Temperature: Above 200°C
Viscosity: Not applicable
Chemical Stability: Stable under normal conditions of use and storage
Possibility of Hazardous Reactions: Dust may form explosive mixtures with air
Conditions to Avoid: Heat, flames, sparks, static discharge, excess moisture
Incompatible Materials: Strong oxidizing agents, strong acids
Hazardous Decomposition Products: Carbon dioxide, carbon monoxide, possibly irritating fumes
Acute Toxicity: No data on acute oral, dermal, or inhalation toxicity for this substance
Skin Irritation: May cause mild irritation with prolonged contact
Eye Irritation: May cause temporary discomfort
Respiratory Sensitization: No information available
Carcinogenicity: Not classified as a carcinogen by IARC, NTP, or OSHA
Mutagenicity: Data not available
Reproductive Toxicity: No evidence of reproductive toxicity
Other Effects: Repeated exposure may result in mild skin or respiratory irritation
Ecotoxicity: Limited data exists, possible threat to aquatic life at high concentrations
Persistence and Degradability: Expected to be biodegradable, but may persist under certain conditions
Bioaccumulation Potential: Not expected to bioaccumulate significantly
Mobility in Soil: Low mobility due to low water solubility
Other Adverse Effects: Avoid uncontrolled release to the environment, as precautionary principle applies with limited data
Waste Treatment: Dispose of via approved chemical waste incineration or landfill in accordance with local, regional, and national regulations
Contaminated Packaging: Rinse containers before disposal if allowed, otherwise dispose as hazardous waste
Special Precautions: Do not release into waterways or soil, avoid disposal with municipal waste streams, label waste materials properly
UN Number: Not regulated for transport
UN Proper Shipping Name: Not classified as dangerous goods
Transport Hazard Class: None
Packing Group: None
Environmental Hazards: Not a marine pollutant
Special Precautions: Package to prevent dust release, ensure labeling complies with local regulations
U.S. TSCA Inventory: Listed or may be exempt
EU REACH Status: Not registered due to volume or research status
SARA Title III: Not listed as hazardous
California Proposition 65: Substance not listed on Proposition 65
Other Information: Users should check all relevant local, regional, and national regulations prior to working with this compound
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