• Product Name:2-Bromo-4-butanolide
  • Molecular Formula:C4H5BrO2
  • Purity:99%
  • Molecular Weight:164.986

Product Details;

CasNo: 5061-21-2

Molecular Formula: C4H5BrO2

Appearance: pale yellow liquid

We provide high quality 2-Bromo-4-butanolide (CAS 5061-21-2), at a very affordable prices to our customers. Pharmaceutical Intermediates 5061-21-2 in bulk supply with reliable price.

1.What is the 2-Bromo-4-butanolide ?

Lactams inhibit type Q arylesterase activity of human serum paraoxonase PON1.

2.What is the CAS number for 2-Bromo-4-butanolide ?

The CAS number of 2-Bromo-4-butanolide is 5061-21-2.

More information of 2-Bromo-4-butanolide 5061-21-2 are:

CAS Number



1.82 g/cm3

Boiling Point

287.9 °C at 760 mmHg

Flash Point

111.5 °C

Vapor Pressure

0.00242mmHg at 25°C

Refractive Index

n20/D 1.508(lit.)







3.What is the molecular formula of 2-Bromo-4-butanolide ?

The chemical formula of 2-Bromo-4-butanolide is C4H5BrO2 which containing 4 Carbon atoms,5 Hydrogen atoms,1 Bromine atoms and 2 Oxygen atoms,and the molecular weight, and the molecular weight of 2-Bromo-4-butanolide is 164.986

4.What is 2-Bromo-4-butanolide(5061-21-2)used for?

2-Bromo-4-butanolide (2-BB) is a widely studied organic compound, which has been used in a variety of laboratory experiments and scientific research. α-bromo-γ-butyrolactone (αBrγBL) as a comonomer with ε-caprolactone (εCL) or L-lactide (LLA) produces copolymers with active and available grafting sites, e.g., for SET-LRP, where the choice of the grafting monomers is limited only by one's imagination.


Relevant articles related to 2-Bromo-4-butanolide:



Self‐photocatalyzed Homolytic Dehalogenative Alkylation/Cyclization of Unactivated Alkenes Based on the Quinazolinone Skeleton via Energy Transfer

The further exploration revealed that bromolactone, such as α-bromo-γ-butyrolactone, was also suitable for this transformation, providing the desired product in 73% (5 ai).

, Asian Journal of Organic Chemistry, Volume10, Issue12 December 2021 Pages 3390-3395

Establishing α-bromo-γ-butyrolactone as a platform for synthesis of functional aliphatic polyesters–bridging the gap between ROP and SET-LRP

Our aim is to establish α-bromo-γ-butyrolactone as a platform … achieved by copolymerizing α-bromo-γ-butyrolactone with L-… Our aim was to establish α-bromo-γ-butyrolactone (αBrγBL) …

, Polym. Chem., 2014, 5, 3847-3854

5.Pharmaceutical Intermediates 5061-21-2 in bulk supply with reliable price.

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