Description

1,2-Benzenediamine, 3-Ethynyl- (9Ci) is a specialized aromatic diamine derivative featuring a reactive ethynyl substituent, making it a valuable bifunctional building block for advanced synthesis. Its core value lies in enabling the construction of complex molecular architectures, particularly in materials science and pharmaceutical research, where precise functionalization is critical. This high-purity intermediate is essential for R&D chemists and process engineers in the agrochemical, pharmaceutical, and specialty polymer industries seeking to develop novel compounds with tailored properties.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel active pharmaceutical ingredients (APIs), especially for targeted therapies.
• Agrochemical Synthesis: Used in the research and development of next-generation herbicides, fungicides, and plant growth regulators.
• Polymer & Material Science: Acts as a monomer or cross-linking agent for producing high-performance polymers, resins, and advanced materials with enhanced thermal or mechanical properties.
• Ligand & Catalyst Development: Employed in the creation of novel chelating ligands and organometallic catalysts for asymmetric synthesis and other catalytic processes.
• Dye & Pigment Manufacturing: Functions as an intermediate in the production of specialized dyes and organic pigments.
• Research & Development: A crucial reagent in academic and industrial R&D for exploring new chemical entities and reaction pathways.

Basic Information

Product Name	1,2-Benzenediamine, 3-Ethynyl- (9Ci)
CAS No.	61921-13-9
Molecular Formula	C8H8N2
Molecular Weight	132.16 g/mol
Synonyms	3-Ethynyl-1,2-benzenediamine; 3-Ethynylbenzene-1,2-diamine; 1,2-Diamino-3-ethynylbenzene; 3-Ethynyl-o-phenylenediamine; o-Phenylenediamine, 3-ethynyl-; 3-Ethynyl-1,2-diaminobenzene; 3-Ethynylbenzenediamine
EINECS	Contact for details

Quality Control

Every batch of 1,2-Benzenediamine, 3-Ethynyl- (9Ci) is manufactured under strict quality management systems and undergoes rigorous analytical testing to ensure high purity and consistency. Our standard grade meets typical research and industrial specifications, with purity often exceeding 95% (HPLC). A comprehensive Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with each shipment to guarantee traceability and compliance with your project requirements.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at a controlled room temperature (15-25°C) in a cool, dry, and well-ventilated place. Due to its sensitivity to light and oxidation, prolonged exposure to air or light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Light yellow to brown crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Melting Point	Contact for details
Heavy Metals	< 20 ppm
Residue on Ignition	< 0.1%

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