3,4-Dichlorophenoxyacetic acid

3,4-二氯苯氧乙酸

Also known as: 3,4-D, 3,4-DA, (3,4-Dichlorophenoxy)acetic acid, 2-(3,4-dichlorophenoxy)acetic acid, EINECS 209-612-4, MFCD00004303, LABOTEST-BB LT00233086

3,4-Dichlorophenoxyacetic acid (CAS 588-22-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H6Cl2O3 and a molecular weight of 221.037 g/mol. It is also known as 3,4-D, 3,4-DA and (3,4-Dichlorophenoxy)acetic acid. Key properties include a melting point of 138-140ºC(lit.), a boiling point of 351.4±27.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 166.3±23.7 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
588-22-7
Jingsj CID
J-3992-3
Molecular Formula
C8H6Cl2O3
Chinese Name
3,4-二氯苯氧乙酸
Molecular Weight
221.037 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point138-140ºC(lit.)
Boiling Point351.4±27.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point166.3±23.7 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 3,4-Dichlorophenoxyacetic acid?

The CAS number of 3,4-Dichlorophenoxyacetic acid is 588-22-7.

What are the molecular formula and molecular weight of 3,4-Dichlorophenoxyacetic acid?

3,4-Dichlorophenoxyacetic acid has molecular formula C8H6Cl2O3 and molecular weight 221.037 g/mol.

Is 3,4-Dichlorophenoxyacetic acid hazardous?

3,4-Dichlorophenoxyacetic 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. "3,4-Dichlorophenoxyacetic acid (CAS 588-22-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-3992-3 (accessed 2026-10-23).

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