Description

Phenyl Methanesulfonate is an organic sulfonate ester with the CAS registry number 16156-59-5. This compound serves as a versatile alkylating agent and a key chemical intermediate in the synthesis of more complex molecules. It is primarily utilized by pharmaceutical and agrochemical research and development teams, as well as in advanced material science applications.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs), particularly in constructing sulfonate ester linkages.
• Agrochemical Synthesis: Acts as a building block for creating herbicides, fungicides, and plant growth regulators.
• Polymer Modification: Employed as a functionalization agent to introduce phenyl or sulfonate groups into polymer chains.
• Organic Synthesis Reagent: Serves as a reliable methanesulfonylating or phenylating agent in laboratory-scale and pilot-scale reactions.
• Dye and Pigment Manufacturing: Utilized in the production of specialized colorants and photographic chemicals.
• Cross-coupling Reactions: Functions as a substrate or reagent in metal-catalyzed cross-coupling reactions for C-C bond formation.

Basic Information

Product Name	Phenyl Methanesulfonate
CAS No.	16156-59-5
Molecular Formula	C7H8O3S
Molecular Weight	172.20 g/mol
Synonyms	Phenyl methanesulfonate; Methanesulfonic acid phenyl ester; Phenyl mesylate; Methylsulfonyloxybenzene; Benzene, (methylsulfonyloxy)-; Phenyl ester of methanesulfonic acid; Mesyloxybenzene
EINECS	240-299-6

Quality Control

Our Phenyl Methanesulfonate is manufactured under a strict quality management system. Each batch is analyzed to ensure high chemical purity and consistency, with specifications typically meeting or exceeding 98% purity by HPLC. Comprehensive Certificates of Analysis (COA) documenting identity, purity, and impurity profiles are provided with every shipment to ensure traceability and compliance for your R&D and production needs.

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 heat, sparks, and open flame. This material is moisture-sensitive; ensure containers are kept tightly sealed when not in use to prevent degradation.

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%
Density (at 20°C)	~1.25 g/cm³

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