Description

Pentanoyl Chloride, 2-Bromo-5-Chloro- is a highly reactive acid chloride derivative, serving as a critical building block in advanced organic synthesis. Its value lies in the strategic placement of halogen atoms, which enable precise functionalization and the construction of complex molecular architectures. This intermediate is essential for researchers and manufacturers in the pharmaceutical and agrochemical industries, particularly for developing active ingredients and specialty fine chemicals.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel active pharmaceutical ingredients (APIs), especially those requiring halogenated side chains for bioactivity.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and pesticides where the bromo and chloro substituents enhance biological activity and stability.
• Liquid Crystal & OLED Material Production: Acts as a building block for creating halogenated organic compounds used in electronic displays and optoelectronic devices.
• Polymer Modification: Employed to introduce functional groups into polymer backbones, altering physical properties like solubility, thermal stability, and reactivity.
• Cross-Coupling Reactions: Serves as a substrate in palladium-catalyzed cross-coupling reactions (e.g., Suzuki, Stille) for carbon-carbon bond formation in complex molecule assembly.
• Peptide & Protein Research: Utilized as an acylating agent for modifying amino acids or introducing specific labels into peptides under controlled conditions.

Basic Information

Product Name	Pentanoyl Chloride, 2-Bromo-5-Chloro-
CAS No.	31210-96-5
Molecular Formula	C5H7BrCl2O
Molecular Weight	228.92 g/mol
Synonyms	2-Bromo-5-chloropentanoyl chloride; 5-Chloro-2-bromovaleryl chloride; 5-Chloro-2-bromopentanoyl chloride; Valeryl chloride, 2-bromo-5-chloro-; 2-Bromo-5-chlorovaleryl chloride; Pentanoyl chloride, 2-bromo-5-chloro-; α-Bromo-δ-chlorovaleryl chloride
EINECS	Contact for details

Quality Control

Our Pentanoyl Chloride, 2-Bromo-5-Chloro- is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including GC/HPLC for purity and identity confirmation via FT-IR and NMR, to ensure it meets the high standards required for research and industrial synthesis. Certificates of Analysis (COA) with full traceability are provided to guarantee consistent quality and reliable performance in your processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at 2-8°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 strong bases, oxidizers, and sources of ignition.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Assay (GC/HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Related Substances (GC/HPLC)	≤ 2.0% total

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