Description

1,2-Ethynediamine is a highly reactive, bifunctional organic compound containing both an alkyne and a primary amine group. This unique structure makes it a valuable specialty building block for synthesizing complex heterocycles, ligands, and pharmaceutical intermediates. It is primarily sought by R&D chemists and process developers in the pharmaceutical, agrochemical, and advanced materials sectors.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly those containing nitrogen-rich heterocyclic scaffolds.
• Ligand Synthesis: Used to create chelating agents and ligands for catalysis and metal-organic frameworks (MOFs).
• Polymer Chemistry: Serves as a monomer or cross-linking agent for producing specialty polymers with tailored properties.
• Agrochemical Research: Employed in the development of new active ingredients for crop protection.
• Chemical Synthesis: Acts as a versatile building block for creating complex molecules in academic and industrial research.
• Corrosion Inhibitor Formulation: Potential component in specialty formulations for metal surface treatment.

Basic Information

Product Name	1,2-Ethynediamine
CAS No.	4403-54-7
Molecular Formula	C2H4N2
Molecular Weight	56.07 g/mol
Synonyms	Ethyne-1,2-diamine; 1,2-Diaminoacetylene; Acetylenediamine; 1,2-Diaminoethyne; Aminoacetyleneamine; 1,2-Diaminoethylene (deprecated); But-2-ynediamine (incorrect but sometimes used)
EINECS	Contact for details

Quality Control

Our 1,2-Ethynediamine is produced under strict quality protocols. Each batch undergoes comprehensive analytical testing to ensure high purity and consistency. We provide a detailed Certificate of Analysis (COA) with every shipment, which includes data for identity, assay, and impurity profiles. Our quality management system supports cGMP standards for research and development applications.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry, and well-ventilated place. Due to its hygroscopic and easily oxidized nature, the container should be kept sealed and allowed to reach room temperature before opening to prevent moisture ingress. Recommended long-term storage temperature is 2-8°C.

Specification

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

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