Product Name: Propylene Glycol Caprylic Acid Capric Acid Mixed Diesters
Common Names: Propylene Glycol Dicaprylate/Dicaprate
Chemical Formula: C27H52O5 (typical mixture)
CAS Number: 68583-51-7
Recommended Use: Used as an emollient in personal care, food-grade applications, solubilizer, pharmaceutical excipient
Supplier Details: Manufacturer and distributor information should include company name, address, phone number, and emergency contact for chemical incidents
Synonyms: Mixed diesters of propylene glycol with caprylic acid and capric acid
Emergency Number: Local poison control center or CHEMTREC
Other Identifiers: INCI: Propylene Glycol Dicaprylate/Dicaprate
GHS Classification: Not classified as hazardous according to GHS criteria
Signal Word: None
Hazard Statements: May cause mild skin and eye irritation upon direct contact
Pictograms: None required
Precautionary Statements: Avoid eye contact, prolonged skin exposure
Other Hazards: Slippery when spilled; not considered a combustible liquid in normal conditions
Symptoms of Exposure: Mild irritation, redness in eyes or on skin following direct, prolonged exposure
Main Components: Propylene glycol mono- and diesters of caprylic (octanoic) acid and capric (decanoic) acid
Concentration: 90–100% (purity depends on manufacturer)
Component 1: Propylene glycol dicaprylate, CAS 68583-51-7
Component 2: Propylene glycol dicaprate, CAS 853947-59-8
Impurities: Trace amounts of free propylene glycol, caprylic acid, capric acid below 2%
Stabilizers: None typically
Additives: None unless specified by product grade
Inhalation: Move person to fresh air, seek medical attention if irritation or symptoms persist
Skin Contact: Wash exposed area thoroughly with soap and water, remove contaminated clothing and wash before reuse
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present and easy to do, continue rinsing, seek medical advice if irritation persists
Ingestion: Rinse mouth with water, avoid vomiting except under medical supervision, seek medical attention for large quantities or if symptoms occur
Important Symptoms: May cause mild irritation to eyes or skin, ingestion can lead to gastrointestinal discomfort
Special Notes for Doctors: Treat symptomatically, no specific antidote required
Suitable Extinguishing Media: Dry chemical, foam, carbon dioxide, or water spray
Unsuitable Media: Direct water jets may spread the product
Special Hazards from Product: Heating causes formation of irritating vapors and fumes, product can generate carbon oxides if burned
Firefighting Instructions: Use self-contained breathing apparatus and protective clothing
Fire/Explosion Hazards: Can form slippery layers, risk of slip-and-fall accidents near spill or during cleanup
Decomposition Products: Releases carbon monoxide, carbon dioxide under fire conditions
Protective Equipment: Positive pressure self-contained breathing apparatus, chemical protective gloves, full gear as recommended by local authorities
Personal Precautions: Wear suitable protective clothing (gloves, goggles), avoid contact with skin and eyes
Environmental Precautions: Prevent entry into sewers, water sources, or soil
Spill Procedures: Contain spill with inert absorbents such as sand or earth, collect residue in a suitable container for disposal
Cleaning Methods: Wash area with detergent and water after bulk of material is picked up, ventilate area if indoors
Disposal: Dispose of according to local regulations
Prevention of Secondary Hazards: Product may be slippery, take care to avoid falls
Handling: Wear appropriate personal protective equipment, avoid splashing or aerosol formation, use only in well-ventilated areas
Storage Conditions: Store in tightly closed containers in cool, dry, well-ventilated location away from heat and direct sunlight
Incompatible Materials: Strong oxidizing agents, acids, bases
Hygiene Practices: Wash hands after use, keep out of reach of children
Temperature Requirements: Stable at ambient temperature, avoid excessive heat above 50°C
Fire Protection: Store away from ignition sources, use non-sparking tools
Exposure Limits: No occupational exposure limits established for diesters
Engineering Controls: Local exhaust ventilation recommended in processing areas
Respiratory Protection: Not required under normal use, use mask if vapor/aerosol formation possible
Skin Protection: Protective gloves (nitrile or chemical-resistant types) recommended when handling bulk
Eye Protection: Safety glasses or goggles
Other Protective Equipment: Protective clothing to prevent skin contact if working with large quantities
General Precautions: Follow standard workplace hygiene practices, do not eat, drink or smoke during use
Physical State: Liquid, clear to pale yellow
Odor: Mild, faint fatty odor
pH: Not applicable (nonaqueous liquid)
Melting Point: -5 to 5°C (depends on fatty acid ratio)
Boiling Point: >200°C
Flash Point: >220°C (closed cup)
Autoignition Temperature: Not easily autoignited under standard conditions
Decomposition Temperature: >220°C
Vapor Pressure: Very low at room temperature
Density/Relative Density: 0.94 – 0.96 g/cm³ at 25°C
Solubility: Insoluble in water, soluble in alcohols and many organic solvents
Viscosity: 20–40 cSt at 25°C
Partition Coefficient (octanol/water): log Pow >5 (estimated)
Chemical Stability: Stable under normal temperatures and pressures
Reactivity: Not known to react violently with other chemicals under recommended use
Hazardous Reactions: None in normal conditions
Conditions to Avoid: Heating above recommended storage temperatures, strong direct sunlight
Materials to Avoid: Strong oxidizers (peroxides, nitrates), strong acids and bases
Hazardous Decompositions: Produces irritating and toxic gases (CO, CO₂) at high temperatures or fire
Acute Toxicity (Oral): LD50 (rat, oral) > 5000 mg/kg (low toxicity)
Skin Corrosion/Irritation: May cause mild irritation after prolonged contact
Serious Eye Damage/Irritation: Mild, transitory irritation possible
Respiratory Sensitization: Not classified as a respiratory sensitizer
Skin Sensitization: Not a known sensitizer in animal or human testing
Carcinogenicity: No ingredient listed as carcinogenic by IARC, NTP, OSHA
Mutagenicity: Not mutagenic according to standard tests
Reproductive Toxicity: No evidence of reproductive toxicity
Other Health Effects: Ingestion of large volumes could produce gastrointestinal upset, diarrhea, nausea
Ecotoxicity: No data indicating high hazard for aquatic life, low acute toxicity in standard aquatic tests
Bioaccumulation Potential: Partition coefficient suggests potential for bioaccumulation, most diesters are slowly biodegradable
Degradability: Readily biodegradable under aerobic conditions, slower in anaerobic
Mobility in Soil: Not mobile due to low water solubility
Aquatic Toxicity: LC50 for fish (96 hr) > 100 mg/L
Persistence: Will eventually degrade to propylene glycol and fatty acids in environment
Other Adverse Effects: No significant risk of ozone depletion or endocrine disruption
Waste Disposal Methods: Dispose of in accordance with local, regional, national, and international regulations
Incineration: Permitted for large quantities under controlled conditions
Landfill: Allowable for small quantities of non-contaminated product
Packaging Disposal: Clean containers may be recycled or disposed of as non-hazardous waste, residues require special handling if contaminated
Waste Codes: Not classified as hazardous waste per United States RCRA
Precautions: Avoid entry to waterways, drains, and soil
UN Number: Not regulated for transport by air, sea, or land
Proper Shipping Name: Not regulated
Transport Hazard Class: None
Packing Group: None
Marine Pollutant: No
Special Precautions: Use tightly sealed packaging, prevent leaks during transportation
Labeling Requirements: No special hazard label required, use standard product labeling for identification
Other Transport Information: Avoid transporting with strong oxidizing substances
OSHA: Not classified as a hazardous chemical under US OSHA HazCom Standard
TSCA: Listed on US TSCA Inventory
REACH: Registered under EU REACH Regulation
EPA SARA Title III: Not subject to SARA Section 302/304/313 reporting
California Proposition 65: Not listed
WHMIS (Canada): Not a controlled product
FDA Status: Permitted as a direct/indirect food additive in some applications
Other Regulatory Lists: Japan ENCS, China IECSC, Australia AICS, New Zealand NZIoC—listed
Labeling Requirements: No GHS hazard symbols needed, follow workplace labeling laws
Workplace Limits: No specific occupational exposure limits imposed
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