Description
3-Bromo-4-hydroxybenzaldehyde (CAS No. 2973-78-6) is a high-purity aromatic aldehyde compound widely utilized in organic synthesis and pharmaceutical research. With the molecular formula C7H5BrO2, this crystalline solid exhibits a melting point range of 138-142°C and is soluble in organic solvents such as ethanol, methanol, and dimethyl sulfoxide (DMSO). Ideal for researchers and scientists, this reagent serves as a versatile intermediate in the synthesis of heterocyclic compounds, bioactive molecules, and advanced materials. Its bromo and hydroxy functional groups enable selective modifications, making it valuable for cross-coupling reactions, medicinal chemistry, and material science applications. Packaged under inert conditions to ensure stability, our product is rigorously tested for purity (≥97%) via HPLC and NMR analysis.
Properties
- CAS Number: 2973-78-6
- Complexity: 127
- IUPAC Name: 3-bromo-4-hydroxy-benzaldehyde
- InChI: InChI=1S/C7H5BrO2/c8-6-3-5(4-9)1-2-7(6)10/h1-4,10H
- InChI Key: UOTMHAOCAJROQF-UHFFFAOYSA-N
- Exact Mass: 199.94729
- Molecular Formula: C7H5BrO2
- Molecular Weight: 201.02
- SMILES: C1=CC(=C(C=C1C=O)Br)O
- Topological: 37.3
- Monoisotopic Mass: 199.94729
- Synonyms: 3-Bromo-4-hydroxybenzaldehyde, 2973-78-6, Benzaldehyde, 3-bromo-4-hydroxy-, 4-Hydroxy-3-bromobenzaldehyde, DTXSID30183890, NSC 220227, DTXCID70106381, 608-409-1, uotmhaocajroqf-uhfffaoysa-n, 3-Bromo-4-hydroxy-benzaldehyde, MFCD00017348, 2-Bromo-4-formylphenol; 4-Hydroxy-3-bromobenzaldehyde; NSC 220227, NSC220227, 3-bromo-4-hydroxybenzaldehye, SCHEMBL190410, 3-bromo-4-hydroxy benzaldehyde, 4-hydroxy-3-bromo-benzaldehyde, STR08374, CK2092, SBB063051, STK398334, 3-Bromo-4-hydroxybenzaldehyde, 97%, AKOS000291220, CS-W007483, FB30014, NSC-220227, PS-3499, AC-13248, SY040634, DB-022343, B2350, NS00028766, ST45067233, EN300-07841, Q63395282, Z56960236
3-Bromo-4-hydroxybenzaldehyde is primarily employed as a key intermediate in the synthesis of pharmaceuticals, agrochemicals, and specialty chemicals. It serves as a precursor for Suzuki-Miyaura and other palladium-catalyzed cross-coupling reactions to construct complex molecular architectures. Researchers also utilize it in the development of fluorescence probes and polymer precursors due to its reactive aldehyde group. Its compatibility with Grignard reagents and nucleophilic additions further expands its utility in organic transformations.
Safety and Hazards
GHS Hazard Statements
- H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
- H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
- H335 (95.8%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
Precautionary Statements
- P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501
Hazard Classes and Categories
- Skin Irrit. 2 (100%)
- Eye Irrit. 2 (100%)
- STOT SE 3 (95.8%)
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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.


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