CAS 38771-21-0

4-Bromo-1-butyne

Description:

4-Bromo-1-butyne is an organic compound characterized by its alkyne functional group, specifically a terminal alkyne due to the presence of a triple bond between the first and second carbon atoms in the butyne chain. The presence of a bromine atom at the fourth carbon position contributes to its reactivity and makes it a useful intermediate in organic synthesis. This compound typically appears as a colorless to pale yellow liquid and has a distinct odor. It is relatively insoluble in water but soluble in organic solvents such as ether and alcohol. 4-Bromo-1-butyne can participate in various chemical reactions, including nucleophilic substitutions and coupling reactions, making it valuable in the synthesis of more complex organic molecules. Safety precautions should be taken when handling this compound, as it may be harmful if inhaled or absorbed through the skin. Proper storage in a cool, dry place away from light is recommended to maintain its stability.

Formula: C₄H₅Br

InChI: InChI=1/C4H5Br/c1-2-3-4-5/h1H,3-4H2

SMILES: C#CCCBr

Synonyms:

• 1-Butyne, 4-Bromo-
• 4-Bromobut-1-yne

4-Bromo-1-butyne

CAS: 38771-21-0

Formula: C₄H₅Br

Purity: >97.0%(GC)

Color and Shape: Colorless to Light yellow to Light orange clear liquid

Molecular weight: 132.99

Ref: 3B-B3242

4-Bromo-1-butyne, 97%

CAS: 38771-21-0

4-Bromo-1-butyne is used for pharmaceutical intermediates. This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has

Formula: C₄H₅Br

Purity: 97%

Color and Shape: Colorless to pale brown, Liquid

Molecular weight: 132.99

Ref: 02-H53367

4-Bromo-1-butyne

CAS: 38771-21-0

Formula: C₄H₅Br

Purity: 97%

Color and Shape: Liquid

Molecular weight: 132.9865

Ref: IN-DA0035UJ

4-Bromo-1-Butyne

CAS: 38771-21-0

4-Bromo-1-Butyne

Purity: 97%

Molecular weight: 132.988g/mol

Ref: 54-OR73093

4-Bromo-1-butyne

CAS: 38771-21-0

Formula: C₄H₅Br

Purity: 97.0%

Color and Shape: Clear Liquid

Molecular weight: 132.988

Ref: 10-F050603

4-Bromo-1-butyne

Controlled Product

CAS: 38771-21-0

Applications 4-Bromo-1-butyne is used in the regioselective preparation and CDC25 phosphatase inhibition activity SAR of triazolobenzylidene-thiazolopyrimidines via parallel click chemistry between azidobenzylidene-thiazolopyrimidines and alkynes
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References Duval, R., et al.: J. Comb. Chem., 11, 947 (2009)

Formula: C₄H₅Br

Color and Shape: Neat

Molecular weight: 132.99

Ref: TR-B682950

4-Bromo-1-butyne

CAS: 38771-21-0

4-Bromo-1-butyne is an organic chemical compound that is used as a precursor in the synthesis of pharmaceuticals and agrochemicals. 4-Bromo-1-butyne has been shown to inhibit the growth of T-cell leukemia cells, murine leukemia cells, tuberculosis, and colorectal adenocarcinoma. In addition, 4-Bromo-1-butyne has been shown to be active against bacteria when conjugated with a variety of functional groups such as sulfonamides or amines. The synthetic route for this compound starts from styrene and bromination using NBS followed by 1,4-addition of butyne to the bromide. This process produces a mixture of cis and trans isomers which are separated by chromatography on silica gel.

Formula: C₄H₅Br

Purity: Min. 95%

Color and Shape: Clear Liquid

Molecular weight: 132.99 g/mol

Ref: 3D-FB164813