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3,5-Dibromo-4-hydroxybenzaldehyde

Also known as: 3,5-dibromo-4-hydroxybenzaldehyde, 4-hydroxy-3,5-dibromobenzaldehyde, 2,6-dibromo-4-formylphenol, 3,5-dibromo-4-hydroxyphenylaldehyde, NSC 72944, AKOS B028935, AKOS BC-3031

3,5-Dibromo-4-hydroxybenzaldehyde (CAS 2973-77-5) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C7H4Br2O2 and a molecular weight of 279.914 g/mol. Key properties include a melting point of 181-185 °C(lit.), a boiling point of 273.3±35.0 °C at 760 mmHg, a density of 2.1±0.1 g/cm3 and a flash point of 119.1±25.9 °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.
2973-77-5
Jingsj CID
J-3806-7
Molecular Formula
C7H4Br2O2
Molecular Weight
279.914 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point181-185 °C(lit.)
Boiling Point273.3±35.0 °C at 760 mmHg
Density2.1±0.1 g/cm3
Flash Point119.1±25.9 °C
Exact Mass277.857788
PSA37.30000
LogP3.53
Vapor Pressure0.0±0.6 mmHg at 25°C
Refractive Index1.687

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 3,5-Dibromo-4-hydroxybenzaldehyde?

The CAS number of 3,5-Dibromo-4-hydroxybenzaldehyde is 2973-77-5.

What are the molecular formula and molecular weight of 3,5-Dibromo-4-hydroxybenzaldehyde?

3,5-Dibromo-4-hydroxybenzaldehyde has molecular formula C7H4Br2O2 and molecular weight 279.914 g/mol.

Is 3,5-Dibromo-4-hydroxybenzaldehyde hazardous?

3,5-Dibromo-4-hydroxybenzaldehyde 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 3,5-Dibromo-4-hydroxybenzaldehyde?

For 3,5-Dibromo-4-hydroxybenzaldehyde, Upstream Products: 2,6-Dibromo-4-methylphenol, 4-Hydroxybenzaldehyde, p-Cresol; Downstream Products: 3,4,5-Trimethoxybenzaldehyde, 3,5-Dibromo-4-hydroxybenzaldehyde oxime, Syringaldehyde.

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

Last updated:

How to cite: Jingsj. "3,5-Dibromo-4-hydroxybenzaldehyde (CAS 2973-77-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-3806-7 (accessed 2026-11-07).

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