Cyclopropylamine

Cyclopropylamine (CAS 765-30-0) is a strained-ring primary amine used as a reactive building block in pharmaceutical synthesis and specialty polymer chemistry. Also known as CPA.

Where is Cyclopropylamine used?

• Pharmaceutical manufacturing: incorporated into active pharmaceutical ingredient synthesis
• Preparation of kinase inhibitors, antidepressants and other small-molecule drug candidates where the cyclopropyl motif improves metabolic stability
• Polymer chemistry: curing agent and cross-linker in epoxy and specialty resin systems, where controlled amine reactivity influences network density and mechanical performance
• Agrochemical development: key intermediate for herbicide synthesis
• Biotech research: building block for probe compounds and enzyme inhibitors in target-based drug discovery
• It is a valued intermediate for constructing complex molecular architectures at scale.

Commercial specifications

• Technical and high-purity grades; purity typically 98% up to 99%+ for pharmaceutical intermediate use
• Packaging from small research quantities to bulk drums and IBC containers