4-Fluorophenylacetic acid
Also known as: p-Fluorophenylacetic acid, (4-Fluorophenyl)acetic acid, 2-(4-Fluorophenyl)acetic acid, 4-Fluorobenzeneacetic acid, Benzeneacetic acid, 4-fluoro-, NSC 402, MFCD00004343, EINECS 206-972-4, Ba 2821, 4-FLUOROPHENYLACETIC ACID FOR SYNTHESIS
4-Fluorophenylacetic acid (CAS 405-50-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H7FO2 and a molecular weight of 154.138 g/mol. Key properties include a melting point of 81-83 °C(lit.), a boiling point of 265.3±15.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 114.3±20.4 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 405-50-5
- Jingsj CID
- J-38324-4
- Molecular Formula
- C8H7FO2
- Molecular Weight
- 154.138 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 81-83 °C(lit.) |
|---|---|
| Boiling Point | 265.3±15.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 114.3±20.4 °C |
| Exact Mass | 154.043015 |
| PSA | 37.30000 |
| LogP | 1.56 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.529 |
GHS Safety & Compliance
- H315 — Causes skin irritation
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 4-Fluorophenylacetic acid?
The CAS number of 4-Fluorophenylacetic acid is 405-50-5.
What are the molecular formula and molecular weight of 4-Fluorophenylacetic acid?
4-Fluorophenylacetic acid has molecular formula C8H7FO2 and molecular weight 154.138 g/mol.
Is 4-Fluorophenylacetic acid hazardous?
4-Fluorophenylacetic acid has GHS signal word Warning and hazard statements H315 — Causes skin irritation.
What are the upstream and downstream products of 4-Fluorophenylacetic acid?
For 4-Fluorophenylacetic acid, Upstream Products: 4-Fluorobenzyl chloride, Methyl 2-(4-fluorophenyl)acetate, Ethyl 4-fluorophenylacetate; Downstream Products: 2-(4-Fluorophenyl)-1-phenylethanone, 1-(2-Bromoethyl)-4-fluorobenzene, 1,2-Bis(4-fluorophenyl)ethanone.
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-Fluorophenylacetic acid (CAS 405-50-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-38324-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.