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Send EmailDioctyl Terephthalate, Bis 2-ethylhexyl Terephthalate, DOTP, 6422-86-2
DİOCTYL TEREPHTHALATE (DOTP)
CAS Number: 6422-86-2
EC Number (EINECS): 229-176-9
Molecular Formula: C₂₄H₃₈O₄
Molecular Weight: 390.56 g/mol
Chemical Class: Terephthalate ester (phthalate-free plasticizer)
SECTION 1: PRODUCT IDENTIFICATION AND CHEMICAL IDENTITY
| Parameter | Description |
|---|---|
| Chemical Name (IUPAC) | Bis(2-ethylhexyl) benzene-1,4-dicarboxylate |
| Other Names | DOTP, Dioctyl Terephthalate, Bis(2-ethylhexyl) terephthalate, Dioctyl terephthalate, Terephthalic acid dioctyl ester |
| CAS Number | 6422-86-2 |
| EC Number (EINECS) | 229-176-9 |
| Molecular Formula | C₂₄H₃₈O₄ |
| Molecular Weight | 390.56 g/mol |
| Chemical Class | Terephthalate ester (phthalate-free plasticizer) |
| Structure | Para-terephthalic acid + 2-ethylhexanol ester |
| Appearance | Clear to slightly yellowish liquid |
| Odor | Mild characteristic |
SECTION 2: PHYSICAL AND CHEMICAL PROPERTIES
| Property | Value / Range |
|---|---|
| Molecular Formula | C₂₄H₃₈O₄ |
| Molecular Weight | 390.56 g/mol |
| Appearance | Clear to slightly yellowish liquid |
| Odor | Mild characteristic |
| Density (20°C) | 0.983-0.985 g/cm³ |
| Specific Gravity (25°C) | 0.979-0.983 g/cm³ |
| Viscosity (25°C) | ~60-70 cP |
| Viscosity (100°C) | ~5-10 cP |
| Melting / Freezing Point | ~ -50°C |
| Boiling Point | ~400°C (at 760 mmHg) |
| Flash Point | ~210°C (410°F) |
| Autoignition Temperature | ~400°C |
| Vapor Pressure (20°C) | < 0.01 mmHg (very low) |
| Solubility in Water | Insoluble (< 0.01 g/L) |
| Solubility in Organic Solvents | Soluble in most organic solvents |
| Refractive Index (n²⁰D) | ~1.485-1.488 |
| Acid Value | ≤ 0.05-0.10 mg KOH/g |
| Water Content | ≤ 0.1% |
| Purity (GC) | ≥ 99.0% |
| Volatility | Very low |
| LogP | ~7.0-8.0 (highly hydrophobic) |
| Dielectric Constant | ~5.0 |
| Color (APHA) | ≤ 50 |
SECTION 3: CHEMICAL PROPERTIES AND REACTIONS
| Property | Description |
|---|---|
| Chemical Class | Terephthalate ester (phthalate-free) |
| Functional Group | Ester (-COOR) |
| Reactivity | Low under normal conditions |
| Hydrolysis | Slow hydrolysis in acidic or basic medium |
| Thermal Decomposition | > 400°C releases CO, CO₂ |
| Oxidation | Stable under normal conditions |
| Hydrolytic Stability | Excellent |
| UV Stability | Good |
| Phthalate-Free | Yes (structurally different from DEHP/DOP) |
3.1. Stability
| Parameter | Information |
|---|---|
| Thermal Stability | Excellent (stable up to 400°C) |
| Hydrolytic Stability | Excellent |
| UV Stability | Good |
| Low Volatility | Very low |
| Migration Resistance | Excellent |
| Incompatibilities | Strong oxidizers, strong acids, strong bases |
SECTION 4: FUNCTIONAL PROPERTIES
| Property | Description |
|---|---|
| Plasticizer Type | Primary plasticizer (phthalate-free) |
| PVC Compatibility | Excellent |
| Plasticizing Efficiency | Excellent |
| Low-Temperature Flexibility | Good |
| Thermal Aging Stability | Excellent |
| Volatility | Very low |
| Migration Resistance | Excellent |
| Extraction Resistance | Good |
| Electrical Properties | High (good dielectric properties) |
| Cold Resistance | High |
| Cost/Performance | High (safe alternative to DEHP/DOP) |
SECTION 5: MAJOR APPLICATIONS AND END-USES
5.1. PVC Plasticizer (Most Important Application)
| Application | Function | Suitability |
|---|---|---|
| Flexible PVC | Primary plasticizer | High |
| PVC Film and Sheet | Flexibility and processability | High |
5.2. Flooring
| Application | Function | Suitability |
|---|---|---|
| Flexible Floor Coverings | Plasticizer | High |
| Vinyl Flooring | Plasticizer | High |
5.3. Medical Applications
| Application | Function | Suitability |
|---|---|---|
| Medical Devices | Plasticizer (safe alternative) | High |
| Medical Tubing | Plasticizer | High |
| Blood and IV Bags | Plasticizer | High |
5.4. Food Packaging
| Application | Function | Suitability |
|---|---|---|
| Stretch Films | Plasticizer | High |
| Food Packaging Films | Plasticizer | High |
| Bottle Closures | Plasticizer | High |
5.5. Toys and Children's Products
| Application | Function | Suitability |
|---|---|---|
| Toys | Plasticizer (safe) | High |
| Childcare Articles | Plasticizer | High |
5.6. Wire and Cable
| Application | Function | Suitability |
|---|---|---|
| Cable Insulation | Plasticizer | High |
| Wire Coatings | Plasticizer | High |
5.7. Other Applications
| Application | Function | Suitability |
|---|---|---|
| Automotive Interiors | Plasticizer | High |
| Adhesives | Plasticizer | High |
| Coatings | Plasticizer | High |
| Seals and Gaskets | Plasticizer | High |
SECTION 6: INDUSTRY SUITABILITY MATRIX
| Industry | Suitability | Explanation |
|---|---|---|
| PVC Processing | High | Most widely used phthalate-free plasticizer |
| Flooring | High | Flexible floor coverings, vinyl flooring |
| Medical | High | Medical devices, tubing (safe alternative) |
| Food Packaging | High | Stretch films, food packaging |
| Toys | High | Toys and children's products |
| Wire and Cable | High | Cable insulation |
| Automotive | High | Interior parts |
| Construction | High | Profiles, seals |
SECTION 7: DOTP vs DOP/DEHP COMPARISON
| Property | DOTP | DOP/DEHP |
|---|---|---|
| Structure | Para-terephthalate (1,4) | Ortho-phthalate (1,2) |
| Chemical Class | Terephthalate | Phthalate |
| Toxicological Status | Low toxicity, non-carcinogenic | Endocrine disruptor concerns |
| Migration | Low | Moderate |
| Volatility | Very low | Low |
| Thermal Stability | Excellent | Good |
| Electrical Properties | High | Good |
| Regulatory Status | Preferred | Restricted / phased out |
| FDA Approval | Yes (food contact) | Restricted |
| California Prop 65 | Not listed | Listed |
SECTION 8: COMPARISON OF PHTHALATES
| Property | DMP (Dimethyl) | DEP (Diethyl) | DBP (Dibutyl) | DOP/DEHP (Dioctyl) | DIDP (Diisodecyl) |
|---|---|---|---|---|---|
| Molecular Formula | C₁₀H₁₀O₄ | C₁₂H₁₄O₄ | C₁₆H₂₂O₄ | C₂₄H₃₈O₄ | C₂₈H₄₆O₄ |
| Molecular Weight | ~194 g/mol | ~222 g/mol | ~278 g/mol | ~390 g/mol | ~446 g/mol |
| Boiling Point | ~282°C | ~298°C | ~340°C | ~385°C | >400°C |
| Volatility | High | Moderate | Low | Very low | Very low |
| Water Solubility | Partially | Slight | Insoluble | Insoluble | Insoluble |
| Main Use | Insect repellent, specialty polymers | Cosmetics, perfume, cellulose acetate | PVC, adhesives, rubber | PVC, vinyl, cable coatings | Cable, automotive, durable PVC |
| Toxicological Status | Relatively low | Low | Endocrine disruptor risk | Environmental concerns, restricted | Safer, low migration |
| Usage Share (per 100 units) | 8% | 12% | 15% | 40% | 25% |
SECTION 9: OTHER NAMES AND IDENTIFIERS
| Type | Name / Description |
|---|---|
| IUPAC Name | Bis(2-ethylhexyl) benzene-1,4-dicarboxylate |
| Commercial Names | DOTP, Dioctyl Terephthalate |
| Synonyms | Bis(2-ethylhexyl) terephthalate, Terephthalic acid dioctyl ester |
| CAS Number | 6422-86-2 |
| EC Number | 229-176-9 |
| HS Code | 29173700 |
SECTION 10: TOXICOLOGY AND HEALTH EFFECTS
| Parameter | Value / Description |
|---|---|
| GHS Classification | Not classified |
| Oral LD50 (Rat) | > 5,000 mg/kg |
| Dermal LD50 (Rabbit) | > 2,000 mg/kg |
| Skin Irritation | Mild irritant |
| Eye Irritation | Mild irritant |
| Skin Sensitization | Not sensitizing |
| Mutagenicity | Negative |
| Carcinogenicity | Not classified (non-carcinogenic) |
| Reproductive Toxicity | Not classified |
| Endocrine Disruption | No concern |
| Target Organs | Skin, eyes |
| California Prop 65 | Not listed |
SECTION 11: SAFETY AND STORAGE
| Parameter | Information |
|---|---|
| Storage Conditions | Cool, dry, well-ventilated area |
| Temperature | Room temperature (15-30°C) |
| Container | Tightly closed containers |
| Materials to Avoid | Strong oxidizers, strong acids, strong bases |
| Shelf Life | 24 months (under recommended conditions) |
| Packaging | 200 kg drum, 1000 kg IBC, bulk tanker |
SECTION 12: TRANSPORT INFORMATION
| Parameter | Information |
|---|---|
| UN Number | Not regulated (not classified as dangerous goods) |
| Hazard Class | Not applicable |
| Packing Group | Not applicable |
| Proper Shipping Name | Dioctyl Terephthalate |
| ADR/RID | Not regulated |
| IMDG Code | Not regulated |
| IATA (Air) | Not regulated |
| Marine Pollutant | No |
SECTION 13: FIRE-FIGHTING MEASURES
| Parameter | Information |
|---|---|
| Fire Hazard | Combustible liquid (flash point ~210°C) |
| Extinguishing Media | Water fog, foam, CO₂, dry chemical |
| Special Hazards | When heated, releases CO, CO₂ |
| Decomposition Products | CO, CO₂ |
| Protective Equipment | Self-contained breathing apparatus (SCBA), full protective clothing |
SECTION 14: ACCIDENTAL RELEASE AND CLEANUP
| Parameter | Information |
|---|---|
| Personal Protection | Gloves, safety goggles, protective clothing |
| Ventilation | Increase ventilation |
| Cleanup Methods | Absorb with absorbent material; collect in sealed containers |
| Environmental Precautions | Prevent entry into drains |
| Waste Disposal | According to local regulations |
SECTION 15: REGULATORY INFORMATION
| Region / Authority | Status |
|---|---|
| EU REACH | Registered |
| Turkey KKDİK | Registration required |
| USA TSCA | Listed |
| USA FDA | Approved for food contact |
| EU Food Contact | Approved |
| California Prop 65 | Not listed (safe) |
| EU Cosmetics Regulation | Permitted |
| EINECS | 229-176-9 |
| WGK (Germany) | 1 (slight hazard to water) |
SECTION 16: SUMMARY AND CRITICAL WARNINGS
Product Summary
| Parameter | Value |
|---|---|
| Product | Dioctyl Terephthalate (DOTP) |
| CAS | 6422-86-2 |
| Appearance | Clear to slightly yellowish liquid |
| Density | 0.984 g/cm³ |
| Molecular Weight | 390.56 g/mol |
| Flash Point | ~210°C |
| Key Industries | PVC, flooring, medical, food packaging |
CRITICAL WARNINGS
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Phthalate-Free Plasticizer: DOTP is a safe alternative to traditional phthalate plasticizers (DEHP/DOP). It is non-carcinogenic and has no endocrine-disrupting effects.
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Safe Alternative to DEHP/DOP: DOTP can be used as a direct replacement for DEHP/DOP in applications where they are restricted or phased out. It provides similar plasticizing efficiency.
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FDA Approved: Approved for food contact applications. Can be safely used in stretch films, food packaging, and bottle closures.
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Medical Applications: Widely used as a safe alternative to DEHP in medical devices, tubing, and blood bags due to its low toxicity and migration resistance.
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Toys and Children's Products: Can be safely used in toys and childcare articles due to its non-toxic nature.
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Excellent Thermal Stability: Provides excellent thermal aging stability, making it suitable for high-temperature applications.
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Low Volatility: Very low volatility ensures minimal evaporation loss during processing and long-term service life.
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High Dielectric Properties: Excellent electrical insulation properties make it ideal for wire and cable applications.
-
Regulatory Compliance: Compliant with REACH, FDA, and California Prop 65. Preferred over phthalate plasticizers due to increasing regulatory pressure.
-
Market Trend: DOTP usage is rapidly increasing due to regulatory restrictions on phthalate plasticizers and consumer demand for safer products.
IMPORTANT DISCLAIMER: This Technical Data Sheet (TDS) is for informational purposes only and is based on available technical data. The user is solely responsible for determining the product's suitability for their specific application and for complying with all applicable local, national, and international regulations. DOTP is a phthalate-free, safe plasticizer. For complete safety, storage, handling, transportation, disposal, and regulatory compliance information, always refer to the official Safety Data Sheet (SDS/MSDS) provided by the manufacturer/supplier. Users are responsible for testing the product in their own processes and applications. All local, national, and international regulations must be followed when working with DOTP.
