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4-Chloro-2-nitrobenzaldehyde

Also known as: 2-NITRO-4-CHLOROBENZALDEHYDE, 4-Chlor-2-nitro-benzaldehyd, 4-chloro-2-nitro-benzaldehyde, Benzaldehyde, 4-chloro-2-nitro-, Benzaldehyde,4-chloro-2-nitro, EINECS 226-915-7, MFCD00056104

4-Chloro-2-nitrobenzaldehyde (CAS 5551-11-1) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C7H4ClNO3 and a molecular weight of 185.565 g/mol. Key properties include a melting point of 68 °C, a boiling point of 305.2±27.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 138.4±23.7 °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.
5551-11-1
Jingsj CID
J-49276-2
Molecular Formula
C7H4ClNO3
Molecular Weight
185.565 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point68 °C
Boiling Point305.2±27.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point138.4±23.7 °C
Exact Mass184.987976
PSA62.89000
LogP2.40
Vapor Pressure0.0±0.6 mmHg at 25°C
Refractive Index1.630

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

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 4-Chloro-2-nitrobenzaldehyde?

The CAS number of 4-Chloro-2-nitrobenzaldehyde is 5551-11-1.

What are the molecular formula and molecular weight of 4-Chloro-2-nitrobenzaldehyde?

4-Chloro-2-nitrobenzaldehyde has molecular formula C7H4ClNO3 and molecular weight 185.565 g/mol.

Is 4-Chloro-2-nitrobenzaldehyde hazardous?

4-Chloro-2-nitrobenzaldehyde 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 4-Chloro-2-nitrobenzaldehyde?

For 4-Chloro-2-nitrobenzaldehyde, Upstream Products: 4-Chloro-2-nitrotoluene, N,N-Dimethylformamide dimethyl acetal, 4-chloro-2-nitrobenzyl alcohol; Downstream Products: 6-Chloroindole, Ethyl 6-chloro-1H-indole-2-carboxylate, 7-Chloro-2-hydroxyquinoline.

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

Last updated:

How to cite: Jingsj. "4-Chloro-2-nitrobenzaldehyde (CAS 5551-11-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-49276-2 (accessed 2026-11-09).

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