2,4-Dichlorophenoxyacetic acid
Also known as: 2,4-D, 2,4-dichlorophenoxyacetic acid, (2,4-dichlorophenoxy)acetic acid, 2,4-dichlorophenoxy-acetic acid
2,4-Dichlorophenoxyacetic acid (CAS 94-75-7) 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. Key properties include a melting point of 137 °C, a boiling point of 345.6±27.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 162.8±23.7 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H317 — May cause an allergic skin reaction and H318 — Causes serious eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 94-75-7
- Jingsj CID
- J-47631-3
- Molecular Formula
- C8H6Cl2O3
- Molecular Weight
- 221.037 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 137 °C |
|---|---|
| Boiling Point | 345.6±27.0 °C at 760 mmHg |
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 162.8±23.7 °C |
| Exact Mass | 219.969406 |
| PSA | 46.53000 |
| LogP | 2.59 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.573 |
| Additional Property | Slightly soluble. Decomposes. 0.0890 g/100 mL |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H317 — May cause an allergic skin reaction
- H318 — Causes serious eye damage
- H335 — May cause respiratory irritation
- H412 — Harmful to aquatic life with long lasting effects
Activity & Biological Data
| Additional Information | [1]. Germaine KJ, et al. Bacterial endophyte-enhanced phytoremediation of the organochlorine herbicide 2,4-dichlorophenoxyacetic acid. FEMS Microbiol Ecol. 2006 Aug;57(2):302-10. |
|---|
Customs & Trade Information
| HS Code | 2918990021 |
|---|---|
| Summary | 2918990021 2-(2,4-dichlorophenoxy)acetic acid。supervision conditions:s(import or export registration certificate for pesticides)。VAT:17.0%。tax rebate rate:9.0%。MFN tarrif:6.5%。general tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 2,4-Dichlorophenoxyacetic acid?
The CAS number of 2,4-Dichlorophenoxyacetic acid is 94-75-7.
What are the molecular formula and molecular weight of 2,4-Dichlorophenoxyacetic acid?
2,4-Dichlorophenoxyacetic acid has molecular formula C8H6Cl2O3 and molecular weight 221.037 g/mol.
Is 2,4-Dichlorophenoxyacetic acid hazardous?
2,4-Dichlorophenoxyacetic acid has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H317 — May cause an allergic skin reaction; H318 — Causes serious eye damage.
What are the upstream and downstream products of 2,4-Dichlorophenoxyacetic acid?
For 2,4-Dichlorophenoxyacetic acid, Upstream Products: Ethyl 2,4-dichlorophenoxyacetate, Chloroacetic acid, 2,4-Dichlorophenol; Downstream Products: 2-(2,4-dichlorophenoxy)acetamide, clacyfos, 2-Chlorophenol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2,4-Dichlorophenoxyacetic acid (CAS 94-75-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-47631-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.