Diethyl terephthalate
Also known as: diethyl benzene-1,4-dicarboxylate, terephthalic acid diethyl ester, MFCD00039891, EINECS 211-249-1, diethyl 1,4-benzenedioate, diethyl p-phthalate
Diethyl terephthalate (CAS 636-09-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C12H14O4 and a molecular weight of 222.23700 g/mol. Key properties include a melting point of 42-45 °C, a boiling point of 302 °C, a density of 1.11 and a flash point of 117 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 636-09-9
- Jingsj CID
- J-5321-4
- Molecular Formula
- C12H14O4
- Molecular Weight
- 222.23700 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 42-45 °C |
|---|---|
| Boiling Point | 302 °C |
| Density | 1.11 |
| Flash Point | 117 °C |
| Exact Mass | 222.08900 |
| PSA | 52.60000 |
| LogP | 2.04000 |
| Refractive Index | 1.507 |
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 Diethyl terephthalate?
The CAS number of Diethyl terephthalate is 636-09-9.
What are the molecular formula and molecular weight of Diethyl terephthalate?
Diethyl terephthalate has molecular formula C12H14O4 and molecular weight 222.23700 g/mol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Diethyl terephthalate (CAS 636-09-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-5321-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.