Terephthalaldehyde
Also known as: 1,4-Benzenedicarboxaldehyde, 1,4-Phthalaldehyde, Benzene-1,4-dicarboxaldehyde, p-Phthalaldehyde, Terephthaldicarboxaldehyde, Terephthalic aldehyde, 1,4-Diformylbenzene, p-Phthalicdicarboxaldehyde, TPAL
Terephthalaldehyde (CAS 623-27-8) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H6O2 and a molecular weight of 134.132 g/mol. Key properties include a melting point of 114-116 °C(lit.), a boiling point of 246.5±0.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 101.7±19.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 623-27-8
- Jingsj CID
- J-1083766-1
- Molecular Formula
- C8H6O2
- Molecular Weight
- 134.132 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 114-116 °C(lit.) |
|---|---|
| Boiling Point | 246.5±0.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 101.7±19.6 °C |
| Exact Mass | 134.036774 |
| PSA | 34.14000 |
| LogP | 1.49 |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.623 |
| Additional Property | 3 g/L (50 ºC) |
Customs & Trade Information
| HS Code | 2912299000 |
|---|---|
| Summary | 2912299000. other cyclic aldehydes without other oxygen function. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Terephthalaldehyde?
The CAS number of Terephthalaldehyde is 623-27-8.
What are the molecular formula and molecular weight of Terephthalaldehyde?
Terephthalaldehyde has molecular formula C8H6O2 and molecular weight 134.132 g/mol.
What are the upstream and downstream products of Terephthalaldehyde?
For Terephthalaldehyde, Upstream Products: 1,4-Benzenedimethanol, p-Xylene, Terephthalic acid; Downstream Products: 5-NITRO-2-(4-(5-NITRO-1H-BENZO[D]IMIDAZOL-2-YL)PHENYL)-1H-BENZO[D]IMIDAZOLE, 1,4-Phenylenediacryloyl chloride, 1,4-bis(difluoromethyl)benzene.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Terephthalaldehyde (CAS 623-27-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1083766-1 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.