Description

Isopropyl p-Toluenesulfonate is a versatile organic sulfonate ester, widely utilized as a key alkylating agent and synthetic intermediate in fine chemical synthesis. Its primary value lies in its ability to efficiently transfer the isopropyl group under controlled conditions, enabling the construction of complex molecular architectures. This compound is particularly essential for research and development chemists, process engineers, and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking reliable and high-purity building blocks.

Application

• Pharmaceutical Intermediate: A critical reagent in the synthesis of active pharmaceutical ingredients (APIs), particularly for introducing the isopropyl moiety into target molecules.
• Agrochemical Synthesis: Used in the manufacturing of herbicides, fungicides, and pesticides where specific alkylation steps are required.
• Polymer & Material Science: Acts as a monomer or cross-linking agent in the production of specialty polymers and advanced materials.
• Organic Synthesis & Research: A valuable tool in academic and industrial R&D labs for constructing complex organic compounds, including natural product analogs.
• Dye & Pigment Manufacturing: Employed in the synthesis of certain colorants and photoactive compounds.
• Liquid Crystal & Electronic Chemicals: Serves as a precursor in the synthesis of materials for display technologies and electronic applications.

Basic Information

Product Name	Isopropyl p-Toluenesulfonate
CAS No.	2307-69-9
Molecular Formula	C10H14O3S
Molecular Weight	214.28 g/mol
Synonyms	Isopropyl Tosylate; p-Toluenesulfonic Acid Isopropyl Ester; 4-Methylbenzenesulfonic Acid 1-Methylethyl Ester; Isopropyl 4-Methylbenzenesulfonate; Isopropyl Tosic Acid Ester; 1-Methylethyl p-Toluenesulfonate; Tosic Acid Isopropyl Ester; Isopropyl p-Tosylate
EINECS	218-989-4

Quality Control

Our Isopropyl p-Toluenesulfonate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chromatographic purity analysis and identity confirmation, to ensure it meets the high standards required for sensitive synthetic applications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and consistency for our global B2B clients.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Specific Gravity	1.15 - 1.20

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