Description

But-2-Yne-1,4-Diamine Dihydrochloride is a high-purity, dihydrochloride salt derivative of a linear alkyne diamine, offering enhanced stability and handling properties. This compound serves as a versatile and critical bifunctional building block in organic synthesis, particularly valuable for introducing a rigid, linear spacer into target molecules. It is primarily utilized by research institutions and industrial R&D departments engaged in the development of pharmaceutical intermediates, specialty polymers, and advanced materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), especially those requiring a rigid, linear diamine core for molecular scaffolding.
• Polymer Chemistry: Serves as a monomer or cross-linking agent for the production of specialty polyamides, polyurethanes, and other polymers with tailored thermal and mechanical properties.
• Ligand Synthesis: Used in the preparation of chelating ligands for catalysis and metal-organic frameworks (MOFs), leveraging its dual amine functionality.
• Bioconjugation & Linker Chemistry: Acts as a heterobifunctional linker in bioconjugation techniques for attaching probes, drugs, or other molecules to biomolecules or surfaces.
• Organic Synthesis Reagent: Employed in various organic transformations, including nucleophilic substitution and condensation reactions, to construct complex molecular architectures.
• Material Science Research: Investigated for use in creating novel organic electronic materials and advanced composites due to its conjugated alkyne backbone.

Basic Information

Product Name	But-2-Yne-1,4-Diamine Dihydrochloride
CAS No.	26232-80-4
Molecular Formula	C₄H₈N₂·2HCl
Molecular Weight	157.04 g/mol (Free base: 84.12 g/mol)
Synonyms	1,4-Diamino-2-butyne Dihydrochloride; 2-Butyne-1,4-diamine Dihydrochloride; But-2-yne-1,4-diamine Dihydrochloride; 2-Butynediamine Dihydrochloride; Acetylenediamine Dihydrochloride (derivative); 1,4-Diaminobut-2-yne Dihydrochloride; 1,4-Butynediamine Dihydrochloride
EINECS	Contact for details

Quality Control

Our But-2-Yne-1,4-Diamine Dihydrochloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with every shipment and are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. Due to its hygroscopic nature, the container should be kept tightly sealed after each use to minimize exposure to atmospheric moisture. Recommended long-term storage at controlled room temperature (15-25°C).

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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