4-acetylphenoxyacetic acid

4-乙酰苯氧基乙酸

Also known as: 2-(4-acetylphenoxy)acetic acid, (p-acetylphenoxy)acetic acid, p-Acetylphenoxyacetic acid, AI3-15464, AKOS BB-9444, NSC 9356, Acetic acid, (4-acetylphenoxy)-, EINECS 217-524-2, MFCD00014363, JR-8880, 4-carboxymethoxy-acetophenone, 2-(p-acetylphenoxy)acetic acid

4-acetylphenoxyacetic acid (CAS 1878-81-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H10O4 and a molecular weight of 194.18400 g/mol. It is also known as 2-(4-acetylphenoxy)acetic acid, (p-acetylphenoxy)acetic acid and p-Acetylphenoxyacetic acid. Key properties include a melting point of 175-177 °C (dec.)(lit.), a boiling point of 380.5ºC at 760mmHg and a density of 1.243g/cm3. 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.
1878-81-5
Jingsj CID
J-48338-6
Molecular Formula
C10H10O4
Chinese Name
4-乙酰苯氧基乙酸
Molecular Weight
194.18400 g/mol
Category
Organic Acids
Last updated
8/21/2026

No offers for this compound yet.

Request a quote

Physicochemical Properties

Melting Point175-177 °C (dec.)(lit.)
Boiling Point380.5ºC at 760mmHg
Density1.243g/cm3
Exact Mass194.05800
PSA63.60000
LogP1.35260
Vapor Pressure1.81E-06mmHg at 25°C

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2918990090
Summary2918990090. 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-acetylphenoxyacetic acid?

The CAS number of 4-acetylphenoxyacetic acid is 1878-81-5.

What are the molecular formula and molecular weight of 4-acetylphenoxyacetic acid?

4-acetylphenoxyacetic acid has molecular formula C10H10O4 and molecular weight 194.18400 g/mol.

Is 4-acetylphenoxyacetic acid hazardous?

4-acetylphenoxyacetic acid has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of 4-acetylphenoxyacetic acid?

For 4-acetylphenoxyacetic acid, Upstream Products: Glycolic acid, 1-(4-Iodophenyl)ethanone, Chloroacetic acid; Downstream Products: Formaldehyde, 4'-Hydroxyacetophenone, 4'-Methoxyacetophenone.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "4-acetylphenoxyacetic acid (CAS 1878-81-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-48338-6 (accessed 2026-10-28).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.