4-Hydroxyphenoxyacetic Acid

4-羟基苯氧乙酸

Also known as: (4-Hydroxyphenoxy)acetic acid, 2-(4-Hydroxyphenoxy)acetic acid, 4-(Carboxymethoxy)phenol, p-Hydroxyphenoxyacetic acid, Acetic acid, 2-(4-hydroxyphenoxy)-, Hydroquinone monoacetic acid, Hydrochinon-mono-glykolsaeure, MFCD00014362

4-Hydroxyphenoxyacetic Acid (CAS 1878-84-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H8O4 and a molecular weight of 168.14700 g/mol. It is also known as (4-Hydroxyphenoxy)acetic acid, 2-(4-Hydroxyphenoxy)acetic acid and 4-(Carboxymethoxy)phenol. Key properties include a melting point of 154-157 °C(lit.), a boiling point of 372.6ºC at 760mmHg, a density of 1.367g/cm3 and a flash point of 158.3ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1878-84-8
Jingsj CID
J-8962-5
Molecular Formula
C8H8O4
Chinese Name
4-羟基苯氧乙酸
Molecular Weight
168.14700 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point154-157 °C(lit.)
Boiling Point372.6ºC at 760mmHg
Density1.367g/cm3
Flash Point158.3ºC

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 4-Hydroxyphenoxyacetic Acid?

The CAS number of 4-Hydroxyphenoxyacetic Acid is 1878-84-8.

What are the molecular formula and molecular weight of 4-Hydroxyphenoxyacetic Acid?

4-Hydroxyphenoxyacetic Acid has molecular formula C8H8O4 and molecular weight 168.14700 g/mol.

Is 4-Hydroxyphenoxyacetic Acid hazardous?

4-Hydroxyphenoxyacetic Acid has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "4-Hydroxyphenoxyacetic Acid (CAS 1878-84-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-8962-5 (accessed 2026-10-22).

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