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Sodium 4-chlorobenzoate

Also known as: Sodium p-chlorobenzoate, 4-Chlorobenzoic acid sodium salt, SODIUM P-CHLOROBENZOATE, SODIUM 4-CHLOROBENZOATE, Microbin, Microbine, p-Chlorobenzoic acid sodium salt, Sodium 4-chlorobenzoate 98%, Benzoic acid, p-chloro-, sodium salt, p-chloro-sodium benzoate, sodium para-chlorobenzoate

Sodium 4-chlorobenzoate (CAS 3686-66-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H4ClNaO2 and a molecular weight of 178.54800 g/mol. Key properties include a melting point of 243ºC, a boiling point of 287.2ºC at 760mmHg, a density of 1.374g/cm3 and a flash point of 127.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3686-66-6
Jingsj CID
J-1378049-9
Molecular Formula
C7H4ClNaO2
Molecular Weight
178.54800 g/mol
Category
Organic Acids
Last updated
8/21/2026
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Physicochemical Properties

Melting Point243ºC
Boiling Point287.2ºC at 760mmHg
Density1.374g/cm3
Flash Point127.5ºC
Exact Mass177.98000
PSA40.13000
LogP0.70350

Customs & Trade Information

HS Code2916399090
Summary2916399090 other aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Sodium 4-chlorobenzoate?

The CAS number of Sodium 4-chlorobenzoate is 3686-66-6.

What are the molecular formula and molecular weight of Sodium 4-chlorobenzoate?

Sodium 4-chlorobenzoate has molecular formula C7H4ClNaO2 and molecular weight 178.54800 g/mol.

What are the upstream and downstream products of Sodium 4-chlorobenzoate?

For Sodium 4-chlorobenzoate, Upstream Products: Methyl 4-chlorobenzoate, Sodium trimethylsilanolate, 4,4'-Dichlorobenzoin; Downstream Products: 4-Chlorobenzoic acid, butyl 4-chlorobenzoate, 4-Chlorobenzophenone.

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

Last updated:

How to cite: Jingsj. "Sodium 4-chlorobenzoate (CAS 3686-66-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1378049-9 (accessed 2026-11-09).

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