Description

But-3-Enoyl Chloride is a highly reactive, unsaturated acid chloride derivative. This compound serves as a crucial versatile building block in organic synthesis, enabling the efficient introduction of the but-3-enoyl moiety. It is primarily utilized by pharmaceutical intermediates manufacturers and research chemists for applications in drug discovery, agrochemicals, and advanced material science.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs) and complex molecules.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators.
• Polymer Chemistry: Acts as a monomer or cross-linking agent for specialty polymers and coatings.
• Fine Chemical Production: Essential for manufacturing dyes, pigments, and flavor/fragrance compounds.
• Bioconjugation Reagent: Utilized in biochemical research for modifying proteins, peptides, and other biomolecules.
• Material Science Research: Employed in the development of novel organic frameworks and advanced functional materials.

Basic Information

Product Name	But-3-Enoyl Chloride
CAS No.	1470-91-3
Molecular Formula	C4H5ClO
Molecular Weight	104.54 g/mol
Synonyms	3-Butenoyl chloride; Vinylacetyl chloride; 3-Butenoic acid chloride; But-3-enoic acid chloride; 3-Butenoylchloride; 1-Butene-4-carboxylic acid chloride; EINECS 216-001-6
EINECS	216-001-6

Quality Control

Our But-3-Enoyl Chloride is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. We provide comprehensive Certificates of Analysis (COA) for every shipment, detailing key parameters such as assay, identity, and impurity profiles. Our quality management system is designed to meet the stringent requirements of GMP and ISO standards for industrial and research applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures between 2°C and 8°C (refrigerated) or as specified on the label. Due to its hygroscopic and highly volatile nature, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent moisture absorption and decomposition. Keep away from heat, sparks, open flames, and incompatible materials such as strong bases, alcohols, and amines.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Acid Value	≤ 5.0 mg KOH/g
Related Substances (GC)	Total impurities ≤ 3.0%

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