Description

Methanesulfonamide, n-Ethynyl-n-Methyl- CAS NO 1675790-91-6 is a specialized sulfonamide derivative featuring both an ethynyl and a methyl substituent on the nitrogen atom. This unique molecular structure makes it a valuable building block in advanced organic synthesis, particularly for the development of novel pharmaceutical intermediates and functional materials. It is primarily sought after by research and development chemists in the pharmaceutical, agrochemical, and material science industries for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the research and development of new active pharmaceutical ingredients (APIs), particularly those requiring sulfonamide or acetylene functional groups.
• Agrochemical Synthesis: Used in the creation of novel herbicides, fungicides, and plant growth regulators where the ethynyl moiety can be leveraged for further chemical modifications.
• Material Science Research: Acts as a precursor or monomer in the development of specialized polymers and advanced organic materials with tailored properties.
• Chemical Biology Probes: Utilized in the synthesis of molecular probes and tags due to the reactive ethynyl group, which is amenable to click chemistry reactions like the copper-catalyzed azide-alkyne cycloaddition (CuAAC).
• Ligand and Catalyst Development: Employed in the design and synthesis of novel ligands for metal catalysis or organocatalysts.
• Custom Synthesis and Contract Manufacturing: A critical starting material for custom synthesis projects requiring high-purity, complex sulfonamide derivatives.

Basic Information

Product Name	Methanesulfonamide, n-Ethynyl-n-Methyl-
CAS No.	1675790-91-6
Molecular Formula	C4H7NO2S
Molecular Weight	133.17 g/mol
Synonyms	N-Ethynyl-N-methylmethanesulfonamide; N-Methyl-N-ethynylmethanesulfonamide; Methyl(ethynyl)sulfamoylmethane; Methanesulfonamide, N-ethynyl-N-methyl-; N-Ethynyl-N-methylmesylamide
EINECS	Contact for details

Quality Control

Every batch of Methanesulfonamide, n-Ethynyl-n-Methyl- is produced and tested under strict quality management protocols to ensure consistency and reliability for your critical R&D and production processes. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as purity (by HPLC), identity confirmation, and impurity profiles. Our quality systems are designed to support applications requiring high-purity intermediates, including those under cGMP guidelines for pharmaceutical development.

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). This compound is hygroscopic (moisture-sensitive); therefore, the container must be kept tightly sealed in a dry environment to prevent degradation. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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