Description

Propargyl Methanesulfonate Ester, 95 CAS NO 16156-58-4 is a high-purity, reactive chemical intermediate featuring both a propargyl group and a methanesulfonate ester moiety. This bifunctional structure makes it a valuable building block for the synthesis of more complex molecules, particularly in pharmaceutical and advanced material research. It is primarily sought after by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries for constructing novel molecular scaffolds and functional materials.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs), especially those requiring alkyne functionality for click chemistry or further derivatization.
• Agrochemical Synthesis: Used in the research and development of novel herbicides, fungicides, and plant growth regulators.
• Polymer & Material Science: Serves as a monomer or cross-linking agent in the production of specialty polymers, resins, and advanced functional materials.
• Organic Synthesis Reagent: Acts as an alkylating agent or a precursor for introducing the propargyl group into target molecules in complex organic synthesis.
• Ligand & Catalyst Development: Utilized in the preparation of specialized ligands and organometallic catalysts for asymmetric synthesis and other catalytic processes.
• Bioconjugation Chemistry: Potential use in bioconjugation techniques for labeling biomolecules due to its reactive ester and alkyne groups.

Basic Information

Product Name	Propargyl Methanesulfonate Ester, 95
CAS No.	16156-58-4
Molecular Formula	C5H8O3S
Molecular Weight	148.18 g/mol
Synonyms	Propargyl Methanesulfonate; Propargyl Mesylate; Methanesulfonic Acid Propargyl Ester; 2-Propynyl Methanesulfonate; 2-Propynyl Mesylate; Propargyl Ester of Methanesulfonic Acid; 16156-58-4; Propargyl Methanesulphonate
EINECS	Contact for details

Quality Control

Our Propargyl Methanesulfonate Ester is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed to confirm identity, potency, and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing purity (typically ≥95%), assay results, and specific tests is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, open flames, and incompatible materials such as strong bases and oxidizing agents. Due to its light-sensitive nature, containers should be kept in opaque packaging or amber glass.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Individual impurity ≤ 1.0%

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