Description

4-Bromobenzaldehyde (CAS No. 1122-91-4) is a high-purity aromatic aldehyde compound widely utilized in organic synthesis and pharmaceutical research. With the molecular formula C₇H₅BrO, it features a bromine substituent at the para position of the benzaldehyde ring, enhancing its reactivity in cross-coupling reactions and nucleophilic substitutions. This reagent is available in ReagentPlus^® 99% purity, ensuring optimal performance for sensitive applications. Suitable for use as a key intermediate in the synthesis of agrochemicals, dyes, and active pharmaceutical ingredients (APIs), it is packaged under inert conditions to maintain stability. Ideal for researchers requiring precise electrophilic aromatic substitution or Grignard reactions.

Properties

• CAS Number: 1122-91-4
• Complexity: 95.1
• IUPAC Name: 4-bromobenzaldehyde
• InChI: InChI=1S/C7H5BrO/c8-7-3-1-6(5-9)2-4-7/h1-5H
• InChI Key: ZRYZBQLXDKPBDU-UHFFFAOYSA-N
• Exact Mass: 183.95238
• Molecular Formula: C7H5BrO
• Molecular Weight: 185.02
• SMILES: C1=CC(=CC=C1C=O)Br
• Topological: 17.1
• Monoisotopic Mass: 183.95238
• Physical Description: White crystalline powder;
• Synonyms: 4-Bromobenzaldehyde, p-Bromobenzaldehyde, Benzaldehyde, 4-bromo-, Benzaldehyde, p-bromo-, 4-formylbromobenzene, 4-Brombenzaldehyd, EINECS 214-365-0, NSC 21638, UNII-4L8VM24F65, 4L8VM24F65, 1-bromo-4-formylbenzene, NSC-21638, BENZALDEHYDE,4-BROMO, 4-FORMYLPHENYL BROMIDE, 4-FORMYL-1-BROMOBENZENE, DTXSID5061534, pBromobenzaldehyde, Benzaldehyde, pbromo, Benzaldehyde, 4bromo, DTXCID1033290, 214-365-0, inchi=1/c7h5bro/c8-7-3-1-6(5-9)2-4-7/h1-5, zryzbqlxdkpbdu-uhfffaoysa-n, 1122-91-4, 4-bromo-benzaldehyde, p-bromo benzaldehyde, MFCD00003377, 4-bromo benzaldehyde, 4-Bromobenzylaldehyde, 4-BROMBENZALDEHYDE, 4-bromobenzaldehye, NSC21638, p-bromo-benzaldehyde, Para-bromobenzaldehyde, 4-bromophenyl-methanone, (4-bromphenyl)-methanone, SCHEMBL6034, SCHEMBL9625, CHEMBL3753357, SCHEMBL27623359, SCHEMBL29001786, BCP26999, STR01128, SBB007609, STK199261, AKOS000118910, AC-2431, CS-W001138, FB10716, HY-W001138, PS-8510, SY001094, 4-Bromobenzaldehyde, ReagentPlus(R), 99%, DB-016056, B0549, NS00015809, ST50331248, EN300-18100, AB-131/40654019, 4-Bromobenzaldehyde, Vetec(TM) reagent grade, 98%, Q27259983, Z57162109, F1294-0143

4-Bromobenzaldehyde serves as a versatile building block in organic synthesis, particularly in Suzuki-Miyaura and Heck cross-coupling reactions for constructing biaryl compounds. It is also employed in the preparation of liquid crystals, photoactive materials, and Schiff base ligands for catalysis. In pharmaceutical research, it acts as a precursor for antihistamines and antimicrobial agents. Its high purity ensures reproducibility in lab-scale and industrial applications.

Safety and Hazards

GHS Hazard Statements

• H302 (73.1%): Harmful if swallowed [Warning Acute toxicity, oral]
• H315 (98.7%): Causes skin irritation [Warning Skin corrosion/irritation]
• H319 (98.7%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
• H334 (48.7%): May cause allergy or asthma symptoms or breathing difficulties if inhaled [Danger Sensitization, respiratory]
• H335 (94.9%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

Precautionary Statements

• P233, P260, P261, P264, P264+P265, P270, P271, P280, P284, P301+P317, P302+P352, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P337+P317, P342+P316, P362+P364, P403, P403+P233, P405, and P501

Hazard Classes and Categories

• Acute Tox. 4 (73.1%)
• Skin Irrit. 2 (98.7%)
• Eye Irrit. 2A (98.7%)
• Resp. Sens. 1 (48.7%)
• STOT SE 3 (94.9%)

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