Description

Benzenebutanoyl Chloride, 4-Methyl- is a specialized organic intermediate belonging to the class of acid chlorides. This compound is valued for its high reactivity, serving as a crucial building block for the synthesis of more complex molecules, particularly in fine chemical and pharmaceutical research. It is primarily sought by R&D chemists and process development scientists working in advanced organic synthesis, agrochemical development, and active pharmaceutical ingredient (API) manufacturing.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel drug candidates and active pharmaceutical ingredients (APIs), particularly those requiring a substituted butanoyl moiety.
• Agrochemical Synthesis: Used in the production of advanced pesticides, herbicides, and plant growth regulators where its structure imparts specific biological activity.
• Fine Chemical Production: Serves as a versatile acylating agent for introducing the 4-methylbenzenebutanoyl group into target molecules in custom synthesis and specialty chemical manufacturing.
• Polymer Chemistry: Can be utilized as a monomer or modifying agent in the synthesis of specialty polymers with tailored properties.
• Material Science Research: Employed in the development of advanced organic materials, including liquid crystals and organic semiconductors.
• Peptide & Protein Modification: Acts as a reagent for the selective acylation of amino groups in biochemical research and bioconjugation.

Basic Information

Product Name	Benzenebutanoyl Chloride, 4-Methyl-
CAS No.	160699-02-5
Molecular Formula	C11H13ClO
Molecular Weight	196.67 g/mol
Synonyms	4-Methylbenzenebutanoyl Chloride; 4-Methylbenzene-1-butanoyl Chloride; 4-Methyl-γ-oxobenzenebutanoyl Chloride; p-Tolylbutyryl Chloride; 4-Methylbenzenebutanoic Acid Chloride; (4-Methylphenyl)butanoyl Chloride; 4-Methyl-ω-chlorocarbonylpropylbenzene; 160699-02-5
EINECS	Contact for details

Quality Control

Our Benzenebutanoyl Chloride, 4-Methyl- is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing, including chromatography (HPLC/GC) and spectroscopic methods (IR, NMR), to ensure high purity and consistency. Certificates of Analysis (COA) documenting identity, purity, and impurity profiles are available for every shipment. We adhere to cGMP principles where applicable to support our customers' regulatory and research needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and should be handled under an inert atmosphere (e.g., nitrogen or argon) to prevent 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
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Individual impurity ≤ 1.0%
Acid Value	Contact for details

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