4-Bromobenzaldehyde

4-Bromobenzaldehyde
Other Names: p-Bromobenzaldehyde, 1-Bromo-4-formylbenzene, 4-Bromobenzenecarbaldehyde

CAS Number: 1122-91-4
Sum Formula: C₇H₅BrO
Molar Mass: 185.02 g/mol
Appearance: White to pale yellow crystalline solid

4-Bromobenzaldehyde is an aromatic aldehyde substituted with a bromine atom at the para position. It is commonly used as a building block in organic synthesis, especially in the production of fine chemicals, agrochemical intermediates, and functionalized aromatic compounds.

Chemical and Physical Properties

• Density: 1.63 g/cm³ (at 20°C)

• Melting Point: 56–59°C

• Boiling Point: 230–232°C

• Solubility in Water: Practically insoluble

• Solubility in Other Solvents: Soluble in organic solvents like ethanol, ether, chloroform, acetone

• Odor: Mild, aromatic

Applications

• Organic Synthesis: Intermediate in the preparation of pharmaceuticals, dyes, and heterocyclic compounds

• Material Chemistry: Used in the synthesis of functionalized polymers and aromatic ligands

• Chemical Research: Employed in the development of brominated aromatic aldehydes and Grignard-type reactions

Safety

Signal Word: Warning

First Aid Measures

• Eye Contact: Rinse immediately with plenty of water. Seek medical attention if irritation persists

• Skin Contact: Wash with soap and water. Remove contaminated clothing

• Inhalation: Move to fresh air. Seek medical attention if respiratory symptoms occur

• Ingestion: Rinse mouth. Do not induce vomiting. Seek medical assistance if unwell

Handling and Storage

• Storage Conditions: Store in a cool, dry, well-ventilated place away from incompatible substances (e.g., oxidizers)

• Handling Precautions: Avoid dust formation. Use personal protective equipment. Work in a fume hood or ventilated area