Description

Benzyl 4-Toluenesulfonate is a versatile organic sulfonate ester, widely recognized as a key alkylating agent and protecting group reagent in synthetic chemistry. Its primary value lies in its ability to efficiently transfer the benzyl group to nucleophiles, making it indispensable for constructing complex molecular architectures. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries who require high-purity intermediates for advanced synthesis.

Application

• Pharmaceutical Intermediate: Serves as a critical building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for introducing benzyl protecting groups.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators where benzylation is a key synthetic step.
• Fine Chemical Production: Acts as an alkylating agent in the manufacture of dyes, fragrances, and other high-value specialty chemicals.
• Polymer Chemistry: Employed as a monomer or modifier in the synthesis of specialized polymers and resins.
• Organic Synthesis Research: A fundamental reagent in academic and industrial R&D labs for nucleophilic substitution reactions and method development.
• Protecting Group Chemistry: Specifically utilized for the protection of alcohols, phenols, and carboxylic acids during multi-step synthetic sequences.

Basic Information

Product Name	Benzyl 4-Toluenesulfonate
CAS No.	1024-41-5
Molecular Formula	C14H14O3S
Molecular Weight	262.32 g/mol
Synonyms	Benzyl Tosylate; Benzyl p-Toluenesulfonate; p-Toluenesulfonic Acid Benzyl Ester; Tosyl Benzyl Ester; Benzyl 4-Methylbenzenesulfonate; Benzyl Tosic Acid Ester; BnOTs; (Phenylmethyl) 4-methylbenzenesulfonate
EINECS	213-826-3

Quality Control

Our Benzyl 4-Toluenesulfonate is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. We provide comprehensive analytical data, including identity confirmation by IR and NMR, and purity determination by HPLC or GC. A Certificate of Analysis (COA) detailing all specifications is available for every batch upon request, supporting compliance in regulated applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong bases, strong oxidizing agents, and sources of ignition. For long-term storage, consider an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	62 - 66 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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