Description

4-Bromobutyryl Chloride is a versatile and highly reactive organic building block, primarily used as an acylating agent in the synthesis of complex molecules. Its value lies in its ability to efficiently introduce the 4-bromobutyryl moiety, a key intermediate for constructing pharmacologically active compounds and advanced materials. This chemical is essential for research and production in the pharmaceutical, agrochemical, and specialty chemical industries, where it serves as a critical precursor for active pharmaceutical ingredients (APIs), liquid crystals, and functional polymers.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of various APIs, including potential candidates for neurological and oncological therapies.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators.
• Liquid Crystal Manufacturing: Serves as a building block for mesogenic compounds used in display technologies.
• Polymer Modification: Employed to introduce functional side chains or cross-linking sites into polymers for specialty materials.
• Organic Synthesis Reagent: Acts as a versatile acyl chloride for amide and ester formation in complex multi-step syntheses.
• Bioconjugation: Utilized for labeling or modifying biomolecules in biochemical research and diagnostic applications.

Basic Information

Product Name	4-Bromobutyryl Chloride
CAS No.	927-58-2
Molecular Formula	C4H6BrClO
Molecular Weight	185.45 g/mol
Synonyms	4-Bromobutanoyl Chloride; γ-Bromobutyryl Chloride; ω-Bromobutyryl Chloride; Butanoyl Chloride, 4-bromo-; NSC 9375; 4-Bromobutyric Acid Chloride; 4-Bromo-1-oxobutyl Chloride
EINECS	213-167-5

Quality Control

Our 4-Bromobutyryl Chloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including GC, HPLC, and NMR, to ensure high purity and consistency. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at 15-25°C. This material is hygroscopic (moisture-sensitive) and light-sensitive; containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent degradation. Keep away from heat, 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
Purity (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%

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