Description

3-tert-Butylbenzoylchloride CAS NO 21900-36-7 is a versatile and highly reactive aromatic acid chloride derivative, serving as a critical building block in advanced organic synthesis. Its primary value lies in its ability to efficiently introduce the 3-tert-butylbenzoyl moiety, a key structural feature for modulating the physical and biological properties of target molecules. This intermediate is essential for research chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop new active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel active pharmaceutical ingredients (APIs), particularly in creating compounds with enhanced lipophilicity and metabolic stability.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and insecticides where the tert-butyl group can improve compound efficacy and environmental profile.
• Polymer Chemistry: Acts as a monomer or modifying agent in the synthesis of specialty polymers, including polyamides and polyesters, to alter thermal and mechanical properties.
• Liquid Crystal & OLED Materials: Employed in the manufacture of advanced electronic materials, where its structure contributes to desired mesogenic and electronic characteristics.
• Dyestuff & Pigment Production: Serves as a precursor for synthesizing complex organic dyes and pigments, providing color fastness and specific hue properties.
• Chemical Research & Development: A fundamental reagent in academic and industrial R&D labs for exploring new chemical reactions and creating compound libraries for screening.

Basic Information

Item	Detail
Product Name	3-tert-Butylbenzoylchloride
CAS No.	21900-36-7
Molecular Formula	C11H13ClO
Molecular Weight	196.67 g/mol
Synonyms	3-tert-Butylbenzoyl Chloride; m-tert-Butylbenzoyl Chloride; 3-(1,1-Dimethylethyl)benzoyl Chloride; 3-(tert-Butyl)benzoyl Chloride; Benzoic acid, 3-(1,1-dimethylethyl)-, chloride; m-t-Butylbenzoyl Chloride; 3-tert-Butylbenzoic Acid Chloride
EINECS	Contact for details

Quality Control

Our 3-tert-Butylbenzoylchloride is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. We employ advanced analytical techniques, including GC, HPLC, and NMR, to verify identity and quantify impurities. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and specific impurity profiles is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent hydrolysis. Keep away from strong bases, oxidizing agents, and sources of ignition.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 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.