trans-2,4-dichlorocinnamic acid
Also known as: (2E)-3-(2,4-dichlorophenyl)acrylic acid, 2,4-dichlorocinnamic acid, 2,4-dichloro-trans-cinnamic acid, trans-2,4-dichlorociamic acid, AKOS BBS-00006981, RARECHEM BK HW 0011, OTAVA-BB BB7020400356, MFCD00004373
trans-2,4-dichlorocinnamic acid (CAS 20595-45-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H6Cl2O2 and a molecular weight of 217.049 g/mol. Key properties include a melting point of 233-235 °C(lit.), a boiling point of 359.4±27.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 171.2±23.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 20595-45-3
- Jingsj CID
- J-1504550-8
- Molecular Formula
- C9H6Cl2O2
- Molecular Weight
- 217.049 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 233-235 °C(lit.) |
|---|---|
| Boiling Point | 359.4±27.0 °C at 760 mmHg |
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 171.2±23.7 °C |
| Exact Mass | 215.974487 |
| PSA | 37.30000 |
| LogP | 3.33 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.638 |
Customs & Trade Information
| HS Code | 2916399090 |
|---|---|
| Summary | 2916399090 other aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of trans-2,4-dichlorocinnamic acid?
The CAS number of trans-2,4-dichlorocinnamic acid is 20595-45-3.
What are the molecular formula and molecular weight of trans-2,4-dichlorocinnamic acid?
trans-2,4-dichlorocinnamic acid has molecular formula C9H6Cl2O2 and molecular weight 217.049 g/mol.
What are the upstream and downstream products of trans-2,4-dichlorocinnamic acid?
For trans-2,4-dichlorocinnamic acid, Downstream Products: 3-(2,4-Dichlorophenyl)propanoic acid, 3-(2,4-Dichlorophenyl)propanal, 3-(2,4-Dichlorophenyl)-1-propanol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "trans-2,4-dichlorocinnamic acid (CAS 20595-45-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1504550-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.