Description

3,4-Dibromobenzaldehyde (CAS No. 74003-55-7) is a high-purity aromatic aldehyde with the molecular formula C₇H₄Br₂O. This compound features two bromine atoms at the 3- and 4-positions of the benzaldehyde ring, making it a versatile intermediate for organic synthesis and pharmaceutical research. With a molecular weight of 263.91 g/mol, it is a crystalline solid at room temperature, offering excellent stability under standard laboratory conditions. Ideal for use in Suzuki coupling, Grignard reactions, and other cross-coupling methodologies, our 3,4-Dibromobenzaldehyde is rigorously tested for purity (typically ≥98% by GC/HPLC) and is available in convenient packaging options to suit your research needs. Store in a cool, dry place away from light and moisture to ensure prolonged shelf life.

Properties

• CAS Number: 74003-55-7
• Complexity: 127
• IUPAC Name: 3,4-dibromobenzaldehyde
• InChI: InChI=1S/C7H4Br2O/c8-6-2-1-5(4-10)3-7(6)9/h1-4H
• InChI Key: UTYRZXNEFUYFCJ-UHFFFAOYSA-N
• Exact Mass: 263.86084
• Molecular Formula: C7H4Br2O
• Molecular Weight: 263.91
• SMILES: C1=CC(=C(C=C1C=O)Br)Br
• Topological: 17.1
• Monoisotopic Mass: 261.86289
• Synonyms: 3,4-Dibromobenzaldehyde, 74003-55-7, DTXSID40347481, DTXCID70298553, 640-122-7, utyrzxnefuyfcj-uhfffaoysa-n, Benzaldehyde, 3,4-dibromo-, MFCD00236033, 3,4-DIBROMO-BENZALDEHYDE, SCHEMBL870202, SCHEMBL2094870, BCP27251, FD7321, AKOS015891096, CS-W012456, PS-7345, SY059440, DB-011106, ST50411493, EN300-99736, Z1269188996

Application

3,4-Dibromobenzaldehyde serves as a key building block in the synthesis of pharmaceuticals, agrochemicals, and specialty chemicals. It is widely used in palladium-catalyzed cross-coupling reactions to create complex aromatic systems. Researchers also employ it as a precursor for liquid crystals and organic electronic materials due to its electron-withdrawing bromine substituents. Its reactivity as an aldehyde makes it valuable for condensation reactions and heterocycle formation.

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 (100%): 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. 2A (100%)
• STOT SE 3 (100%)

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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.