Description

4-Methylbenzenesulfonic Acid 2-Methyl-3-Butenyl Ester is a specialized organic sulfonate ester, a key intermediate in fine chemical synthesis. This compound matters for its role as a versatile building block, enabling the introduction of functional groups in complex molecular architectures. It is primarily needed by R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty polymer industries for developing active ingredients and advanced materials.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of novel active pharmaceutical ingredients (APIs) and prodrugs.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators.
• Polymer Chemistry: Serves as a monomer or cross-linking agent in the development of specialty polymers and resins with tailored properties.
• Fine Chemical Production: Acts as a key intermediate for synthesizing flavors, fragrances, and other high-value specialty chemicals.
• Organic Synthesis Reagent: Employed in research laboratories for alkylation and sulfonylation reactions to construct complex organic molecules.
• Liquid Crystal & Electronic Materials: A potential precursor in the manufacture of materials for display technologies and electronic applications.

Basic Information

Product Name	4-Methylbenzenesulfonic Acid 2-Methyl-3-Butenyl Ester
CAS No.	71394-00-8
Molecular Formula	C₁₂H₁₆O₃S
Molecular Weight	240.32 g/mol
Synonyms	2-Methyl-3-butenyl p-toluenesulfonate; p-Toluenesulfonic acid 2-methyl-3-butenyl ester; 2-Methylbut-3-en-1-yl 4-methylbenzenesulfonate; 3-Buten-2-yl p-toluenesulfonate; 4-Toluenesulfonic acid 2-methyl-3-butenyl ester; 2-Methylallyl p-toluenesulfonate (related isomer); p-Tosyl 2-methyl-3-butenyl ester
EINECS	Contact for details

Quality Control

Our 4-Methylbenzenesulfonic Acid 2-Methyl-3-Butenyl Ester is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chromatography and spectroscopy, to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are available upon request 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 away from incompatible materials such as strong bases and oxidizing agents. Recommended storage temperature is between 15°C and 25°C. The product is moisture-sensitive; keep the container tightly sealed when not in use.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 3.0%
Density (at 20°C)	~1.12 g/cm³

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