4-Dimethylaminopyridine CAS Number: 1122-58-3

Pharmaceutical Materials 2025-03-02

Chemical Name: 4-Dimethylaminopyridine

CAS Number: 1122-58-3

Molecular Formula: C7H10N2

Molecular Weight: 122.17 g/mol

Appearance: White crystalline powder

Usage: Widely used as a highly effective nucleophilic catalyst in various organic reactions.

4-Dimethylaminopyridine (DMAP) is an organic compound with the chemical formula C7H10N2, primarily recognized for its role as a potent catalyst in organic synthesis. It exists as a white to yellow crystalline powder that is highly soluble in various organic solvents such as ether and acetone. DMAP is extensively used to accelerate esterification, ester exchange, and condensation reactions. Its applications span across the pharmaceutical, dye, and polymer industries, making it a valuable chemical in the industrial sector. The compound is typically synthesized through the N-methylation of pyridine using electrophilic reagents and bases under mild reaction conditions.

Property Value
Chemical Formula C7H10N2
CAS Number 1122-58-3
Physical Properties
Appearance White to yellow crystalline powder
Density 1.0±0.1 g/cm³
Melting Point 108-113°C
Boiling Point 162°C (50 mmHg)
Chemical Properties
Molecular Weight 122.17 g/mol
Solubility Soluble in organic solvents like ether, acetone
pH (Aqueous Solution) Basic due to pyridine nitrogen
Flash Point 110°C
LogP 1.34
Vapor Pressure 0.4±0.4 mmHg at 25°C

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