Description

Benzamide, 2-Ethynyl-n-Methyl- (9Ci) CAS NO 139334-73-9 is a specialized organic compound featuring a benzamide core functionalized with an ethynyl group at the 2-position and an N-methyl substituent. This unique molecular architecture makes it a valuable building block and intermediate in advanced synthetic chemistry, particularly for constructing complex heterocyclic systems and functional materials. It is primarily sought after by pharmaceutical research and agrochemical development teams for the synthesis of novel active ingredients and by material scientists exploring new polymers and molecular architectures.

Application

• Pharmaceutical Intermediate: A key synthon in the research and development of new drug candidates, particularly those targeting neurological disorders and oncology.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators.
• Material Science Research: Serves as a precursor for functional polymers, liquid crystals, and organic electronic materials due to its rigid, conjugated structure.
• Chemical Biology Probes: Utilized in the design and synthesis of molecular probes and tags for studying biological processes via click chemistry reactions.
• Academic & Industrial R&D: A versatile building block for methodological development in organic synthesis and catalysis studies.
• Fine Chemical Production: Employed in the multi-step synthesis of complex, high-value specialty chemicals.

Basic Information

Product Name	Benzamide, 2-Ethynyl-n-Methyl- (9Ci)
CAS No.	139334-73-9
Molecular Formula	C10H9NO
Molecular Weight	159.19 g/mol
Synonyms	2-Ethynyl-N-methylbenzamide; N-Methyl-2-ethynylbenzamide; 2-Ethynylbenzoic acid methylamide; 2-Ethynylbenzamide, N-methyl-; (2-Ethynylphenyl)(methyl)methanone amine?; Building block 139334-73-9; CAS 139334-73-9
EINECS	Contact for details

Quality Control

Every batch of Benzamide, 2-Ethynyl-n-Methyl- (9Ci) is manufactured under a strict quality management system. We employ advanced analytical techniques including HPLC, GC, NMR, and MS to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing all specifications and test results is provided with each shipment. Our quality commitment ensures the material meets the exacting standards required for research and commercial synthesis.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (typically 15-25°C). Keep away from heat, sparks, and open flame. For long-term storage, consider storing under an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 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.