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5-Chlorosalicylaldehyde

Also known as: 5-Chloro-2-hydroxybenzaldehyde, 5-Chlorosalicylic aldehyde, 5-Cl-salicylal, 5-chloro-salicylaldehyde, AKOS 90774, Benzaldehyde, 5-chloro-2-hydroxy-, 2-Hydroxy-5-chlorobenzaldehyde

5-Chlorosalicylaldehyde (CAS 635-93-8) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C7H5ClO2 and a molecular weight of 156.566 g/mol. Key properties include a melting point of 100-102 °C(lit.), a boiling point of 228.8±20.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 92.2±21.8 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
635-93-8
Jingsj CID
J-1148760-8
Molecular Formula
C7H5ClO2
Molecular Weight
156.566 g/mol
Category
Organohalogen Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point100-102 °C(lit.)
Boiling Point228.8±20.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point92.2±21.8 °C
Exact Mass155.997803
PSA37.30000
LogP2.57
Vapor Pressure0.0±0.5 mmHg at 25°C
Refractive Index1.632

GHS Safety & Compliance

Irritant / Environmental HazardSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation
  • H400 — Very toxic to aquatic life

Customs & Trade Information

HS Code2913000090
SummaryHS: 2913000090 halogenated, sulphonated, nitrated or nitrosated derivatives of products of heading 2912 Educational tariff:17.0% Tax rebate rate:9.0% Regulatory conditions:none Most favored nation tariff:5.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 5-Chlorosalicylaldehyde?

The CAS number of 5-Chlorosalicylaldehyde is 635-93-8.

What are the molecular formula and molecular weight of 5-Chlorosalicylaldehyde?

5-Chlorosalicylaldehyde has molecular formula C7H5ClO2 and molecular weight 156.566 g/mol.

Is 5-Chlorosalicylaldehyde hazardous?

5-Chlorosalicylaldehyde has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of 5-Chlorosalicylaldehyde?

For 5-Chlorosalicylaldehyde, Upstream Products: Salicylaldehyde, Formaldehyde, 4-Chlorophenol; Downstream Products: 5-Chlorosalicylic acid, 6-Chloro-2H-chromene-3-carbonyl chloride, 1-(5-bromobenzofuran-2-yl)ethanone.

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-Chlorosalicylaldehyde (CAS 635-93-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1148760-8 (accessed 2026-11-09).

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