Description

1,3-Propanediol Di-p-Toluenesulfonate is a high-purity chemical intermediate, specifically a di-ester derivative of 1,3-propanediol and p-toluenesulfonyl chloride. This compound is valued for its role as a versatile alkylating agent and protecting group reagent in sophisticated organic synthesis. It is primarily sought by research and development laboratories and production facilities in the pharmaceutical, agrochemical, and specialty chemical industries for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for introducing propane-1,3-diyl linkages.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators requiring specific chain-extended structures.
• Polymer Chemistry: Serves as a monomer or cross-linking agent in the development of specialty polymers and resins.
• Organic Synthesis Reagent: Acts as a protecting group for diols or as a leaving group in nucleophilic substitution reactions (SN2) in fine chemical manufacturing.
• Liquid Crystal & Material Science: Employed in the research and production of advanced materials, including liquid crystal displays (LCDs) and organic semiconductors.
• Chemical Research: Essential reagent in academic and industrial R&D for method development and exploring new synthetic pathways.

Basic Information

Product Name	1,3-Propanediol Di-p-Toluenesulfonate
CAS No.	5469-66-9
Molecular Formula	C17H20O6S2
Molecular Weight	392.46 g/mol
Synonyms	1,3-Propanediol Ditosylate; Propane-1,3-diyl bis(4-methylbenzenesulfonate); 1,3-Bis(p-toluenesulfonyloxy)propane; p-Toluenesulfonic Acid 1,3-Propanediol Ester; 1,3-Propanediol Ditoluene-p-sulfonate; 1,3-Ditosyloxypropane; TS-1,3-PD; DTSP
EINECS	226-787-8

Quality Control

Our 1,3-Propanediol Di-p-Toluenesulfonate is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for synthetic applications. A Certificate of Analysis (COA) detailing specific results for purity, appearance, and related substances is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Keep away from heat, sparks, and open flame. The container should be kept tightly sealed to prevent moisture absorption.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Related Substances (HPLC)	Individual impurity ≤ 0.5%

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