4-Vinylanilin CAS 1520-21-4

Typical Specification

Public supplier listings show purity as 97% in one commercial listing and >98.0% (titration) with GC min. 95.0% in another major catalog entry. Final release standards should follow the actual batch specification supplied for the order.

Reference Information

For reference only, not used as batch release specification. These values are drawn from catalog and reference listings and should not replace actual batch COA data.

Key Features

• Defined vinyl-substituted aromatic amine intermediate for synthesis use.
• Commonly recognized under the interchangeable names 4-Vinylaniline and 4-Aminostyrene.
• Commercially listed in high-purity grades, commonly around 97% to >98.0% depending on method.
• Suitable for reactive intermediate positioning in synthesis and materials development. This is a conservative inference from supplier presentation and cited use context.
• Requires controlled storage and handling, including protection from light, air, and heat.

Applications

• Organic synthesis requiring a vinyl-functional aromatic amine intermediate. This is directly supported by its supplier positioning as a specialty synthesis chemical.
• Fine chemical and intermediate development where a reactive aromatic amine scaffold is needed. This is a grounded inference from the structure and supply context.
• Materials and polymer-related development, including use as a reactant in preparation of functional polymer systems. One listing specifically notes use in preparation of fluorescent PMMA-latex colloids, and patent literature references poly(4-vinylaniline)-related material applications.
• Laboratory synthesis and route scouting for downstream transformation or functional monomer evaluation. This is a conservative intermediate-stage use statement based on the cited catalog context.
• Process development for specialty aromatic intermediates where controlled reactivity and defined substitution pattern are important. This is an inference from the compound class and supply profile.

Packaging and Storage

Public catalog listings show this material supplied in small packs, such as 5 g and 25 g, which is consistent with development-scale and specialty intermediate sourcing. Broader project-based packing can be discussed according to order scale and handling requirements, but that should be stated conservatively unless you have fixed in-house standards.

For storage, catalog references indicate frozen storage below 0°C, use of inert gas, and protection from light, air, and heat. Another market source also lists refrigerated storage at 0-6°C. Practical storage language on the page should follow the batch SDS and actual warehouse conditions.