Description

Benzamide, 4-Ethynyl- (9Ci) is a specialized aromatic amide derivative featuring a terminal alkyne functional group. This unique molecular architecture makes it a valuable high-purity building block for advanced organic synthesis and materials science research. It is primarily utilized by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and specialty polymer industries for constructing complex molecular frameworks.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the development of novel active pharmaceutical ingredients (APIs), particularly for targeted therapies.
• Agrochemical Research: Used in the synthesis of new herbicide and pesticide candidates, leveraging its reactive ethynyl group for structural diversification.
• Material Science: Acts as a monomer or cross-linking agent in the development of advanced polymers, dendrimers, and conductive organic materials.
• Chemical Biology & Proteomics: Employed in click chemistry reactions (e.g., CuAAC) for bioconjugation, labeling biomolecules, and developing chemical probes.
• Ligand Synthesis: Utilized in organometallic chemistry for creating novel ligands for catalysis and metal-organic frameworks (MOFs).
• Academic & Institutional Research: A fundamental reagent for methodological studies in synthetic organic chemistry and new reaction development.

Basic Information

Product Name	Benzamide, 4-Ethynyl- (9Ci)
CAS No.	90347-86-7
Molecular Formula	C9H7NO
Molecular Weight	145.16 g/mol
Synonyms	4-Ethynylbenzamide; p-Ethynylbenzamide; 4-Ethynylbenzoic acid amide; Benzamide, 4-ethynyl-; 90347-86-7 (CAS); 4-Carbamoylphenylacetylene
EINECS	Contact for details

Quality Control

Every batch of Benzamide, 4-Ethynyl- (9Ci) is manufactured under controlled conditions and undergoes rigorous analytical testing to ensure high purity and batch-to-batch consistency. Our quality assurance protocols are designed to meet the stringent requirements of research and development applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at controlled room temperature (15-25°C) in a cool, dry, and well-ventilated place. Due to its sensitivity to oxidation, the container should be kept sealed under positive pressure of inert gas when not in use.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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