Plasticizers
DOTP (Dioctyl Terephthalate)
CAS 6422-86-2 — Non-Phthalate PVC Plasticizer
DOTP is the leading non-phthalate plasticizer for flexible PVC, approved for food contact and medical applications. Texas-Chem supplies industrial-grade DOTP in bulk drums, totes, and tanker.
CAS Number
6422-86-2
Flash Point
Above 210 °C
Phthalate-Free
Yes — terephthalate
Pack Sizes
Drums · Totes · Tanker
Structure
C₂₄H₃₈O₄ — Dioctyl Terephthalate — CAS 6422-86-2
Safety & Regulatory
- NFPA Health
- 1 — Slight hazard
- NFPA Flammability
- 1 — Slight hazard
- NFPA Reactivity
- 0 — Stable
- Flash Point
- Above 210 °C — Non-flammable
- OSHA PEL
- Not established
- DOT Hazard Class
- Not regulated
Grades & Packaging
Available Grades
Pack Sizes
Also Known As
Physical & Chemical Properties
| CAS Number | 6422-86-2 |
| Molecular Formula | C₂₄H₃₈O₄ |
| Molecular Weight | 390.6 g/mol |
| Appearance | Clear colorless liquid |
| Boiling Point | Above 250 °C |
| Flash Point | Above 210 °C — Non-flammable |
| Density | 0.984 g/cm³ at 20 °C |
| Vapor Pressure | Less than 0.01 mmHg at 20 °C |
| Viscosity | ~60 cP at 20 °C |
| Water Solubility | Practically insoluble |
| Phthalate-Free | Yes — terephthalate isomer |
| Food Contact | FDA/EU approved |
Industrial Applications
Non-Phthalate PVC Compounds
DOTP is the leading non-phthalate plasticizer for flexible PVC, used where phthalate-free formulations are required. It is a drop-in replacement for DINP in most applications with similar performance characteristics.
Food Contact Packaging
DOTP is approved for food contact applications and is used in PVC food packaging films, food service gloves, and food processing equipment components.
Medical Devices
Used in PVC medical tubing, blood bags, and medical device components where phthalate-free formulations are required for biocompatibility.
Wire & Cable
DOTP provides excellent electrical properties and heat resistance comparable to DINP, making it suitable for wire and cable insulation in phthalate-sensitive applications.
Automotive Interior
Used in PVC automotive interior parts where phthalate-free formulations are required by automotive OEM specifications.
Consumer Products
Used in PVC consumer products including toys, childcare articles, and household products where phthalate restrictions apply.
Why Source DOTP from Texas-Chem
- Industrial-grade DOTP in stock — drums, totes, and tanker
- Consistent quality with CoA on every lot
- Same-week delivery across Texas; nationwide LTL and bulk tanker
- Technical support for non-phthalate PVC and food contact applications
- One rep from first call to final delivery
DOTP — Frequently Asked Questions
Is DOTP a true drop-in replacement for DINP?▾
DOTP (dioctyl terephthalate) is a very close drop-in replacement for DINP (diisononyl phthalate) in most flexible PVC applications. DOTP has similar molecular weight (390 vs 418 g/mol), similar plasticizing efficiency, and similar heat resistance. Minor formulation adjustments may be needed for exact performance matching. DOTP is preferred for food contact, medical, and children product applications where phthalate restrictions apply.
Is DOTP approved for food contact applications?▾
Yes. DOTP is approved for food contact applications under FDA 21 CFR 175.300 (resinous and polymeric coatings) and EU Regulation 10/2011 (plastic materials in contact with food). It is used in PVC food packaging films, food service gloves, and food processing equipment. Contact Texas-Chem for food contact compliance documentation.
What is the difference between DOTP and DOP/DEHP?▾
DOTP (dioctyl terephthalate) is a terephthalate ester (para-isomer) while DOP/DEHP (di-2-ethylhexyl phthalate) is an ortho-phthalate ester. DOTP is not classified as SVHC and is approved for food contact and medical applications. DOP/DEHP is classified as SVHC and restricted in many applications. DOTP provides similar plasticizing performance to DOP/DEHP.
Can DOTP be used in medical PVC tubing?▾
Yes. DOTP is used as a non-phthalate plasticizer in PVC medical tubing, blood bags, and medical device components. It provides good biocompatibility and meets ISO 10993 requirements for medical device materials. Contact Texas-Chem for medical-grade DOTP availability and compliance documentation.