CAS 5061-21-2: 2-Bromo-4-butyrolactone

Description: 2-Bromo-4-butyrolactone, with the CAS number 5061-21-2, is a chemical compound characterized by its cyclic ester structure, specifically a lactone. It features a bromine atom at the second position and a butyrolactone ring, which contributes to its reactivity and potential applications in organic synthesis. This compound is typically a colorless to pale yellow liquid and is soluble in organic solvents, making it useful in various chemical reactions. Its reactivity is influenced by the presence of the bromine atom, which can participate in nucleophilic substitution reactions. 2-Bromo-4-butyrolactone is often utilized as an intermediate in the synthesis of pharmaceuticals, agrochemicals, and other organic compounds. Safety considerations are important when handling this substance, as it may pose health risks if inhaled or ingested, and appropriate protective measures should be taken. Overall, its unique structure and reactivity make it a valuable compound in synthetic organic chemistry.

Formula: C₄H₅BrO₂

InChI: InChI=1S/C4H5BrO2/c5-3-1-2-7-4(3)6/h3H,1-2H2

InChI key: InChIKey=LFJJGHGXHXXDFT-UHFFFAOYSA-N

SMILES: O=C1OCCC1Br

Synonyms:

• (3R)-3-bromodihydrofuran-2(3H)-one
• (3S)-3-bromodihydrofuran-2(3H)-one
• 2(3H)-Furanone, 3-bromodihydro-
• 2-Bromo-4-Butanolide
• 2-Bromo-4-butyrolactone
• 2-Bromo-4-hydroxybutyric acid g-lactone
• 2-Bromo-4-hydroxybutyric acid gamma-lactone
• 2-Bromo-gamma-butyrolactone
• 2-Bromo-γ-butyrolactone
• 3-Bromo-2-oxotetrahydrofuran
• 3-Bromo-4,5-dihydro-2(3H)-furanone
• 3-Bromodihydro-2(3H)-furanone
• 3-Bromooxolan-2-one
• 3-Bromotetrahydrofuran-2-one
• 3-bromodihydrofuran-2(3H)-one
• Butyric acid, 2-bromo-4-hydroxy-, γ-lactone
• Butyric acid, α-bromo-γ-hydroxy-, γ-lactone
• NSC 11726
• NSC 56959
• a-Bromo-γ-butyrolatone
• alfa-Bromo-gamma butyrolatone
• Α-Bromo-R-Butyrolactone
• α-Bromo-γ-butyrolactone
• α-Bromobutyric acid γ-lactone

α-Bromo-γ-butyrolactone

CAS: 5061-21-2

• Formula: C₄H₅BrO₂
• Purity: >95.0%(GC)
• Color and Shape: White - Yellow Liquid
• Molecular weight: 164.99

α-Bromo-γ-butyrolactone, 97%

CAS: 5061-21-2

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. …

• Formula: C₄H₅BrO₂
• Purity: 97%
• Color and Shape: Liquid, Clear colorless to yellow or pale brown
• Molecular weight: 164.99

2-Bromo-4-butanolide

CAS: 5061-21-2

• Formula: C₄H₅BrO₂
• Purity: 97%
• Color and Shape: Solid
• Molecular weight: 164.9853

3-Bromodihydrofuran-2(3H)-one

CAS: 5061-21-2

• Formula: C₄H₅BrO₂
• Purity: 98+%
• Color and Shape: colourless liquid
• Molecular weight: 164.99g/mol

2-Bromo-4-butanolide

CAS: 5061-21-2

• Purity: 95.0%
• Color and Shape: Liquid, Clear
• Molecular weight: 164.98599243164062

α-Bromo-γ-butyrolactone

CAS: 5061-21-2

Applications Lactams inhibit type Q arylesterase activity of human serum paraoxonase PON1. References Aldridge, W., …

• Formula: C₄H₅BrO₂
• Color and Shape: Neat
• Molecular weight: 164.99

a-Bromo-γ-butyrolactone

CAS: 5061-21-2

a-Bromo-gamma-butyrolactone (BBAL) is a structural analog of gamma-hydroxybutyric acid, a drug used to treat narcolepsy …

• Formula: C₄H₅BrO₂
• Purity: Min. 95%
• Color and Shape: Colourless To Pale Yellow Liquid
• Molecular weight: 164.99 g/mol