4-Formylphenoxyacetic acid
4-甲酰苯氧乙酸
Also known as: 2-(4-Formylphenoxy)acetic acid, 4-Formyl-PAA linker, 4-Formyl-PAA, 4-Carboxymethoxybenzaldehyde, p-Formylphenoxyacetic acid, AKOS AU36-M42, AKOS B004256, ASISCHEM R21550, MFCD00016613
4-Formylphenoxyacetic acid (CAS 22042-71-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H8O4 and a molecular weight of 180.15700 g/mol. It is also known as 2-(4-Formylphenoxy)acetic acid, 4-Formyl-PAA linker and 4-Formyl-PAA. Key properties include a melting point of 193-196 °C, a boiling point of 373.2ºC at 760 mmHg, a density of 1.322 g/cm3 and a flash point of 155.3ºC. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 22042-71-3
- Jingsj CID
- J-21065-4
- Molecular Formula
- C9H8O4
- Chinese Name
- 4-甲酰苯氧乙酸
- Molecular Weight
- 180.15700 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 193-196 °C |
|---|---|
| Boiling Point | 373.2ºC at 760 mmHg |
| Density | 1.322 g/cm3 |
| Flash Point | 155.3ºC |
| Exact Mass | 180.04200 |
| PSA | 63.60000 |
| LogP | 0.96250 |
| Vapor Pressure | 3.12E-06mmHg at 25°C |
| Storage Conditions | 2-8℃ |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- 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 4-Formylphenoxyacetic acid?
The CAS number of 4-Formylphenoxyacetic acid is 22042-71-3.
What are the molecular formula and molecular weight of 4-Formylphenoxyacetic acid?
4-Formylphenoxyacetic acid has molecular formula C9H8O4 and molecular weight 180.15700 g/mol.
Is 4-Formylphenoxyacetic acid hazardous?
4-Formylphenoxyacetic acid has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
What are the upstream and downstream products of 4-Formylphenoxyacetic acid?
For 4-Formylphenoxyacetic acid, Upstream Products: 4-Hydroxybenzaldehyde, Chloroacetic acid, methyl (4-formylphenoxy)acetate; Downstream Products: 4-(Carboxymethoxy)benzoic acid, 2-(4-Carbamoylphenoxy)acetic acid, Formaldehyde.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Formylphenoxyacetic acid (CAS 22042-71-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-21065-4 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.