5-Chlorosalicylic acid
Also known as: 5-Chloro-2-hydroxybenzoic acid, 2-Hydroxy-5-chlorobenzoic acid, 5-chloro-2-hydroxy-benzoic acid, 5-chloro-salicylic acid, Benzoic acid, 5-chloro-2-hydroxy-, Salicylic acid, 5-chloro-, MFCD00002457, EINECS 206-283-9, UNII-J2YFG68VCZ
5-Chlorosalicylic acid (CAS 321-14-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H5ClO3 and a molecular weight of 172.566 g/mol. Key properties include a melting point of 171-172 °C(lit.), a boiling point of 320.5±27.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 147.6±23.7 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 321-14-2
- Jingsj CID
- J-19789-7
- Molecular Formula
- C7H5ClO3
- Molecular Weight
- 172.566 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 171-172 °C(lit.) |
|---|---|
| Boiling Point | 320.5±27.0 °C at 760 mmHg |
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 147.6±23.7 °C |
| Exact Mass | 171.992722 |
| PSA | 57.53000 |
| LogP | 3.42 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.630 |
| Additional Property | 1 g/L (20 ºC) |
GHS Safety & Compliance
- H301 — Toxic if swallowed
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
Customs & Trade Information
| HS Code | 2918290000 |
|---|---|
| Summary | HS: 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 5-Chlorosalicylic acid?
The CAS number of 5-Chlorosalicylic acid is 321-14-2.
What are the molecular formula and molecular weight of 5-Chlorosalicylic acid?
5-Chlorosalicylic acid has molecular formula C7H5ClO3 and molecular weight 172.566 g/mol.
Is 5-Chlorosalicylic acid hazardous?
5-Chlorosalicylic acid has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
What are the upstream and downstream products of 5-Chlorosalicylic acid?
For 5-Chlorosalicylic acid, Upstream Products: 3-Chlorobenzoic acid, 2,5-Dichlorobenzoic acid, Salicylic acid; Downstream Products: 5-Chlorobenzofuran-3(2H)-one, Methyl 5-chloro-2-hydroxybenzoate, 3,5,6-Trichlorosalicylic acid.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "5-Chlorosalicylic acid (CAS 321-14-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-19789-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.