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3,6-Dichloro-2-hydroxybenzoic acid

Also known as: 3,6-Dichlorosalicylic acid, 2-Hydroxy-3,6-dichlorobenzoic acid, 3,6-DCSA, Benzoic acid, 3,6-dichloro-2-hydroxy-, 2-Oxy-3,6-dichlorobenzoic acid

3,6-Dichloro-2-hydroxybenzoic acid (CAS 3401-80-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H4Cl2O3 and a molecular weight of 207.01100 g/mol. Key properties include a boiling point of 306.7ºC at 760 mmHg, a density of 1.665 g/cm3 and a flash point of 139.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3401-80-7
Jingsj CID
J-1010457-1
Molecular Formula
C7H4Cl2O3
Molecular Weight
207.01100 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point306.7ºC at 760 mmHg
Density1.665 g/cm3
Flash Point139.3ºC
Exact Mass205.95400
PSA57.53000
LogP2.39720
Refractive Index1.641

Customs & Trade Information

HS Code2918290000
SummaryHS: 2918290000 other carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) VAT:17.0% MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 3,6-Dichloro-2-hydroxybenzoic acid?

The CAS number of 3,6-Dichloro-2-hydroxybenzoic acid is 3401-80-7.

What are the molecular formula and molecular weight of 3,6-Dichloro-2-hydroxybenzoic acid?

3,6-Dichloro-2-hydroxybenzoic acid has molecular formula C7H4Cl2O3 and molecular weight 207.01100 g/mol.

What are the upstream and downstream products of 3,6-Dichloro-2-hydroxybenzoic acid?

For 3,6-Dichloro-2-hydroxybenzoic acid, Upstream Products: 2,5-Dichlorophenol, Dicamba; Downstream Products: Dicamba.

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

Last updated:

How to cite: Jingsj. "3,6-Dichloro-2-hydroxybenzoic acid (CAS 3401-80-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1010457-1 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.