Diphenyl terephthalate
对苯二甲酸二苯酯
Also known as: Terephthalic acid diphenyl ester, 1,4-Benzenedicarboxylic acid diphenyl ester, diphenyl benzene-1,4-dicarboxylate, Terephthalic acid, diphenyl ester, DPTP
Diphenyl terephthalate (CAS 1539-04-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C20H14O4 and a molecular weight of 318.32300 g/mol. It is also known as Terephthalic acid diphenyl ester, 1,4-Benzenedicarboxylic acid diphenyl ester and diphenyl benzene-1,4-dicarboxylate. Key properties include a melting point of 197-199°C, a boiling point of 496.6ºC at 760mmHg, a density of 1.242g/cm3 and a flash point of 255ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1539-04-4
- Jingsj CID
- J-33021-9
- Molecular Formula
- C20H14O4
- Chinese Name
- 对苯二甲酸二苯酯
- Molecular Weight
- 318.32300 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 197-199°C |
|---|---|
| Boiling Point | 496.6ºC at 760mmHg |
| Density | 1.242g/cm3 |
| Flash Point | 255ºC |
| Exact Mass | 318.08900 |
| PSA | 52.60000 |
| LogP | 4.12500 |
| Vapor Pressure | 5.34E-10mmHg at 25°C |
| Refractive Index | 1.615 |
Customs & Trade Information
| HS Code | 2917399090 |
|---|---|
| Summary | 2917399090 aromatic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Diphenyl terephthalate?
The CAS number of Diphenyl terephthalate is 1539-04-4.
What are the molecular formula and molecular weight of Diphenyl terephthalate?
Diphenyl terephthalate has molecular formula C20H14O4 and molecular weight 318.32300 g/mol.
What are the upstream and downstream products of Diphenyl terephthalate?
For Diphenyl terephthalate, Upstream Products: 1,4-Dibromobenzene, Phenyl formate, Terephthaloyl chloride.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Diphenyl terephthalate (CAS 1539-04-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-33021-9 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.