Azidoethyl-SS-ethylalcohol | CAS 1807540-82-4

Azidoethyl-SS-ethylalcohol is a bifunctional, disulfide-containing azide reagent designed for click chemistry workflows that incorporate a cleavable redox-responsive linkage. As an azide-bearing building block, it is commonly paired with complementary cyclooctyne or strained-alkyne partners to enable copper-free or copper-catalyzed azide–alkyne conjugation in bioconjugation and materials research. The presence of a disulfide (SS) motif and a short ethylalcohol handle makes it particularly relevant for constructing modular conjugates and crosslinked networks where controlled cleavage or exchange of the linkage is desirable.

1. Redox-Responsive Bioconjugates

Azidoethyl-SS-ethylalcohol is used to introduce an azide handle into disulfide-linked bioconjugates for chemical biology and biomaterials laboratories. Researchers commonly incorporate this reagent into conjugation schemes that connect biomolecules, affinity ligands, or polymer backbones to azide-reactive partners, enabling attachment of imaging tags, affinity reporters, or functional probes via click chemistry. The disulfide linkage supports design strategies in which conjugate stability and downstream release or remodeling are tuned by redox conditions, making the reagent a practical choice for building modular constructs used in assay development and mechanistic studies.

2. Surface Functionalization Coatings

Azidoethyl-SS-ethylalcohol is applied in the preparation of functional surfaces and thin films where azide groups are required for subsequent click-based grafting. Materials and interface-focused teams use the reagent to create disulfide-containing linkers that can be integrated into polymer coatings, hydrogel networks, or surface-anchored layers, allowing later attachment of fluorescent dyes, targeting moieties, or capture ligands through azide–alkyne coupling. This approach is especially useful when the surface architecture must accommodate post-functionalization steps, and when disulfide-containing connectivity is leveraged to influence material behavior under changing chemical environments.

3. Molecular Imaging Probe Assembly

Azidoethyl-SS-ethylalcohol supports the assembly of molecular imaging and fluorescence-based research probes by providing a reactive azide functionality for click conjugation. Probe developers use the reagent to build disulfide-linked probe scaffolds that can be coupled to alkyne-bearing reporter groups, enabling rapid diversification of labeling chemistry without redesigning the core construct. The ethylalcohol-containing fragment also helps maintain compatibility with common solvent systems used in probe formulation and reagent handling, supporting streamlined workflows for generating families of clickable imaging reagents used in cellular and biochemical studies.

4. Drug-Discovery Tool Conjugates

Azidoethyl-SS-ethylalcohol is widely adopted as a clickable linker component in medicinal chemistry tool development, particularly for constructing disulfide-containing conjugates used to interrogate binding, uptake, or processing in biochemical assays. In these workflows, the reagent serves as a convenient azide-bearing handle that can be coupled to alkyne-functional reporters, affinity tags, or scaffold-modifying groups via click chemistry. The disulfide motif enables design of linkers that remain stable during synthesis and storage while remaining responsive to redox-relevant environments, supporting the creation of versatile chemical probes and conjugate libraries for screening and mechanistic evaluation.