Description

α-Bromocrotonicacid CAS NO 27243-23-8 is a versatile brominated organic acid derivative, primarily valued as a key building block in advanced organic synthesis. Its reactive bromine and carboxylic acid functionalities make it an essential intermediate for constructing complex molecular architectures. This compound is particularly relevant for research and production in the pharmaceutical, agrochemical, and specialty chemical industries, where it is used to introduce specific bromoalkyl motifs.

Application

• Pharmaceutical Intermediate: Serves as a crucial precursor in the synthesis of active pharmaceutical ingredients (APIs), especially those requiring bromo-substituted side chains.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and other crop protection agents where the bromocrotonate moiety imparts specific biological activity.
• Organic Synthesis Reagent: Acts as a Michael acceptor or an alkylating agent in various carbon-carbon bond-forming reactions for fine chemical manufacturing.
• Material Science Research: Employed in the development of novel polymers and functional materials, leveraging its bifunctional reactivity for cross-linking or monomer modification.
• Chemical Research & Development: A valuable tool for medicinal chemistry and process chemistry R&D for exploring new synthetic pathways and compound libraries.

Basic Information

Product Name	α-Bromocrotonicacid
CAS No.	27243-23-8
Molecular Formula	C4H5BrO2
Molecular Weight	165.00 g/mol
Synonyms	2-Bromocrotonic Acid; (E)-2-Bromobut-2-enoic Acid; trans-2-Bromocrotonic Acid; α-Bromocrotonic Acid; 2-Bromobut-2-enoic Acid; Bromocrotonic Acid; Crotonic Acid, 2-bromo-; But-2-enoic acid, 2-bromo-
EINECS	Contact for details

Quality Control

Our α-Bromocrotonicacid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets precise customer specifications and industry standards. Certificates of Analysis (COA) with detailed specifications are provided for every shipment to guarantee traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation. Keep away from strong bases and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	85 - 89 °C
Loss on Drying	≤ 1.0%
Heavy Metals	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.