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4-Hydroxy-3-nitrobenzaldehyde

Also known as: 3-Nitro-4-hydroxybenzaldehyde, 3-NO2-4-OHC6H3CHO, 3-NO2-4-OHC6H4CHO, 4-Formyl-2-nitrophenol, 4-Formyl-3-nitrophenol, 4-Hydroxy-3-nitrobenzaldeyde, 4-OH-3-NO2-benzaldehyde, 4-hydroxy-3-nitro-benzaldehyde, Benzaldehyde, 4-hydroxy-3-nitro-, Benzaldehyde,4-hydroxy-3-nitro, EINECS 221-141-6, MFCD00007117, WNR BQ EVH

4-Hydroxy-3-nitrobenzaldehyde (CAS 3011-34-5) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C7H5NO4 and a molecular weight of 167.119 g/mol. Key properties include a melting point of 140-142 °C(lit.), a boiling point of 275.0±25.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 124.3±11.6 °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.
3011-34-5
Jingsj CID
J-28025-1
Molecular Formula
C7H5NO4
Molecular Weight
167.119 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point140-142 °C(lit.)
Boiling Point275.0±25.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point124.3±11.6 °C
Exact Mass167.021851
PSA83.12000
LogP2.00
Vapor Pressure0.0±0.6 mmHg at 25°C
Refractive Index1.667

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-Hydroxy-3-nitrobenzaldehyde?

The CAS number of 4-Hydroxy-3-nitrobenzaldehyde is 3011-34-5.

What are the molecular formula and molecular weight of 4-Hydroxy-3-nitrobenzaldehyde?

4-Hydroxy-3-nitrobenzaldehyde has molecular formula C7H5NO4 and molecular weight 167.119 g/mol.

Is 4-Hydroxy-3-nitrobenzaldehyde hazardous?

4-Hydroxy-3-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-Hydroxy-3-nitrobenzaldehyde?

For 4-Hydroxy-3-nitrobenzaldehyde, Upstream Products: 4-Hydroxybenzaldehyde, 4-Methyl-2-nitrophenol, 4-Fluoro-3-nitrobenzaldehyde; Downstream Products: 4-Methoxy-3-nitrobenzaldehyde, 4-Methoxy-3-nitrobenzyl alcohol, 4-hydroxy-3-nitrobenzyl alcohol.

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-Hydroxy-3-nitrobenzaldehyde (CAS 3011-34-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-28025-1 (accessed 2026-11-09).

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