Dioctyl terephthalate
CAS Number: 6422-86-2
Chemical Formula: C24H38O4
Synonyms:
– 168 plasticizer
– 168-ca plasticizer
– BIS(2-ETHYLHEXYL)-1,4-BENZENEDICARBOXYLATE
– PA-6 Plasticizer adhesive
– di-(2-ethylhexyl)terephthalate
Appearance: Colorless liquid
HS Code: 29173990
MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)
Dioctyl terephthalate, commonly abbreviated as DOTP, serves as a plasticizer for manufacturing PVC and other copolymer materials. It is an ester formed by terephthalic acid and 2‑ethylhexanol. This product appears as a transparent, colorless liquid with a faint odor and is insoluble in water. Thanks to its good heat resistance, outstanding durability, and high transparency, DOTP can directly replace DOP and DINP in many application scenarios. It is widely used in calendering, extrusion, injection molding, and other processing technologies.
Dioctyl terephthalate Chemical Properties
| Item | Value |
| Melting point | -48 °C |
| Boiling point | 400 °C (lit.) |
| density | 0.986 g/mL at 25 °C (lit.) |
| vapor pressure | 1 mm Hg (217 °C) |
| refractive index | n20/D 1.49(lit.) |
| Fp | 230 °F |
| storage temp. | 2-8°C |
| solubility | Aqueous Base (Slightly) |
| form | Liquid |
| color | Clear colorless |
| Water Solubility | insoluble |
| Stability: | Hygroscopic |
| LogP | 8.34 at 20℃ |
| CAS DataBase Reference | 6422-86-2(CAS DataBase Reference) |
| EPA Substance Registry System | Bis(2-ethylhexyl) terephthalate (6422-86-2) |
Safety Information
| Item | Value |
| Safety Statements | 24/25 |
| WGK Germany | 1 |
| RTECS | WZ0883500 |
| HS Code | 29173990 |
| Hazardous Substances Data | 6422-86-2(Hazardous Substances Data) |
Product Application of Dioctyl terephthalate CAS#6422-86-2
DOTP can form composite blends with polyaniline (PANI) and ethylene dimethacrylate (EDMA), which can be applied to prepare conductive films. It can also be used as a plasticizer combined with polyvinyl chloride (PVC) to prepare solutions for simulating vascular intima plaques.
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New production: 7–10 working days
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