4-Ethoxy-3-methoxyphenylacetic acid
Also known as: 2-(4-ethoxy-3-methoxyphenyl)acetic acid, 2-(4-ethoxy-3-methoxy-phenyl)acetic acid, 2-(4-ethoxy-3-methoxy-phenyl)ethanoic acid, 4-Ethoxy-3-methoxybenzeneacetic acid, Apremilast Impurity 129, Benzeneacetic acid, 4-ethoxy-3-methoxy-, RARECHEM AL BO 0342, MFCD00016831
4-Ethoxy-3-methoxyphenylacetic acid (CAS 120-13-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C11H14O4 and a molecular weight of 210.22600 g/mol. Key properties include a melting point of 122-124°C, a boiling point of 344.1ºC at 760 mmHg, a density of 1.159 g/cm3 and a flash point of 132ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 120-13-8
- Jingsj CID
- J-45899-1
- Molecular Formula
- C11H14O4
- Molecular Weight
- 210.22600 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 122-124°C |
|---|---|
| Boiling Point | 344.1ºC at 760 mmHg |
| Density | 1.159 g/cm3 |
| Flash Point | 132ºC |
| Exact Mass | 210.08900 |
| PSA | 55.76000 |
| LogP | 1.72100 |
| Vapor Pressure | 2.56E-05mmHg at 25°C |
| Refractive Index | 1.522 |
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 4-Ethoxy-3-methoxyphenylacetic acid?
The CAS number of 4-Ethoxy-3-methoxyphenylacetic acid is 120-13-8.
What are the molecular formula and molecular weight of 4-Ethoxy-3-methoxyphenylacetic acid?
4-Ethoxy-3-methoxyphenylacetic acid has molecular formula C11H14O4 and molecular weight 210.22600 g/mol.
What are the upstream and downstream products of 4-Ethoxy-3-methoxyphenylacetic acid?
For 4-Ethoxy-3-methoxyphenylacetic acid, Upstream Products: Tetraethyl dimethylaminomethylenediphosphonate, 4-Ethoxy-3-methoxybenzaldehyde.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Ethoxy-3-methoxyphenylacetic acid (CAS 120-13-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-45899-1 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.