Diethyl isophthalate
Also known as: 1,3-Benzenedicarboxylic acid, diethyl ester, Isophthalic acid, diethyl ester, Diethyl 1,3-benzenedicarboxylate, Diethyl m-phthalate, NSC 249815, DEIP, RARECHEM AL BI 0071, diethyl benzene-1,3-dicarboxylate
Diethyl isophthalate (CAS 636-53-3) 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 222.237 g/mol. Key properties include a melting point of 11.5ºC, a boiling point of 302.0±10.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 157.7±8.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 636-53-3
- Jingsj CID
- J-32734-4
- Molecular Formula
- C12H14O4
- Molecular Weight
- 222.237 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 11.5ºC |
|---|---|
| Boiling Point | 302.0±10.0 °C at 760 mmHg |
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 157.7±8.5 °C |
| Exact Mass | 222.089203 |
| PSA | 52.60000 |
| LogP | 3.51 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.508 |
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 isophthalate?
The CAS number of Diethyl isophthalate is 636-53-3.
What are the molecular formula and molecular weight of Diethyl isophthalate?
Diethyl isophthalate has molecular formula C12H14O4 and molecular weight 222.237 g/mol.
What are the upstream and downstream products of Diethyl isophthalate?
For Diethyl isophthalate, Upstream Products: Diethyl sulfate, Isophthalic acid, Ethanol; Downstream Products: 1,3-diacetylbenzene, Isophthalic acid, 3-propionylbenzoic acid.
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 isophthalate (CAS 636-53-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32734-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.