2-Bromo-4-butanolide

2-Bromo-4-butanolide (CAS: 5061-21-2) is a high-purity halogenated cyclic lactone fine chemical with a stable five-membered ring ester structure. The molecular structure contains active bromine substituent and lactone functional group, featuring high chemical reactivity, moderate thermal stability and good solubility in common organic solvents. As a typical α-bromo lactone compound, it is prone to nucleophilic substitution and ring-opening reactions, serving as a core aliphatic cyclic synthetic building block. 2-Bromo-4-butanolide (5061-21-2) is widely applied in organic synthesis, pharmaceutical intermediate preparation and fine chemical derivatization.

α-Bromo-γ-butyrolactone, 2-Bromo-gamma-butyrolactone, 3-Bromodihydrofuran-2 (3H) -one, 2-Bromo-4-hydroxybutyric acid gamma-lactone

29322090

1. Pharmaceutical Intermediate Synthesis 2-Bromo-4-butanolide (CAS: 5061-21-2) is an essential intermediate for the synthesis of lactone-based pharmaceutical compounds. Its active α-bromo substitution site supports efficient nucleophilic substitution modification, and it is widely used in the R&D and production of antiviral drugs, antibacterial agents and central nervous system drug intermediates. 2. Organic Synthetic Derivatization Reagent 2-Bromo-4-butanolide (5061-21-2) acts as a high-activity synthetic raw material for fine chemical derivatization. The reactive bromine atom and hydrolyzable lactone ring can participate in diversified substitution, ring-opening and condensation reactions, enabling the efficient preparation of complex functionalized aliphatic compounds and high-value fine chemical derivatives. 3. Polymer Material Modification Precursor 2-Bromo-4-butanolide (CAS: 5061-21-2) is used as a functional precursor for polymer material modification. It can be applied in ring-opening polymerization and polymer chain grafting modification, effectively improving the functional activity and chemical stability of polymer materials, and supporting the preparation of high-performance functional polymer products. 4. Laboratory Chemical R&D Reagent 2-Bromo-4-butanolide (5061-21-2) is a standard high-purity laboratory research reagent. It is commonly used in the research of cyclic lactone reaction mechanisms, halogenated organic synthesis processes and new functional molecule development, providing stable raw material support for academic experiments and small-batch industrial trial production.

≥98%

Store at 2-8 °C in dry, sealed, dark and ventilated environment, avoid high temperature, strong light and humid air to prevent hydrolysis and decomposition

2 years under proper storage

Colorless to pale yellow transparent liquid

Research Grade, Fine Chemical Grade, Synthetic Intermediate Grade

1.792±0.06 g/cm3

35-37 °C