trans-3-Ethoxycinnamic acid
Also known as: (2E)-3-(3-ethoxyphenyl)acrylic acid, (2E)-3-(3-ethoxyphenyl)prop-2-enoic acid, 2-Propenoic acid, 3-(3-ethoxyphenyl)-, (2E)-, 3-(3-ethoxyphenyl)acrylic acid, 3-(3-ethoxyphenyl)prop-2-enoic acid, 3-ethoxycinnamic acid, 3-Ethoxycinnamic acid, predominantly trans, m-ethoxycinnamic acid, MFCD00016843
trans-3-Ethoxycinnamic acid (CAS 103986-73-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C11H12O3 and a molecular weight of 192.211 g/mol. Key properties include a melting point of 131-133 °C(lit.), a boiling point of 341.6±17.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 133.8±14.4 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 103986-73-8
- Jingsj CID
- J-29291-1
- Molecular Formula
- C11H12O3
- Molecular Weight
- 192.211 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 131-133 °C(lit.) |
|---|---|
| Boiling Point | 341.6±17.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 133.8±14.4 °C |
| Exact Mass | 192.078644 |
| PSA | 46.53000 |
| LogP | 2.92 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.579 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2918990090 |
|---|---|
| Summary | 2918990090. other carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of trans-3-Ethoxycinnamic acid?
The CAS number of trans-3-Ethoxycinnamic acid is 103986-73-8.
What are the molecular formula and molecular weight of trans-3-Ethoxycinnamic acid?
trans-3-Ethoxycinnamic acid has molecular formula C11H12O3 and molecular weight 192.211 g/mol.
Is trans-3-Ethoxycinnamic acid hazardous?
trans-3-Ethoxycinnamic acid has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
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-3-Ethoxycinnamic acid (CAS 103986-73-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-29291-1 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.