Ethyl butylacetylaminopropionate

Ethyl butylacetylaminopropionate (CAS 52304-36-6 ), commonly abbreviated as BAAPE and also marketed under the name Quwenzhi, is a synthetic insect repellent active used as an alternative to DEET.

It functions by masking or blocking the chemical cues that biting insects use to locate hosts, providing protection without the aggressive solvent behavior associated with older actives.

In personal care, BAAPE is formulated into lotions, sprays, and wipes where low skin irritation and compatibility with cosmetic ingredients are priorities over DEET-based options.

Agricultural and outdoor protection products use it in pump sprays and impregnation treatments for clothing and gear, targeting mosquito and tick exposure in field conditions.

Home care and industrial cleaning brands incorporate it into household insect repellent sprays and surface treatments designed for consumer-safe, low-odor formulations.

Its compatibility with emulsion systems also makes it suitable for slow-release or encapsulated delivery formats in both personal and environmental protection products.

Ethyl butylacetylaminopropionate is supplied as a clear to pale yellow liquid. It is available in technical grade, with concentrations typically around 95% or higher for active ingredient applications.

Bulk supply is standard in drums or IBC containers, with smaller packaging available for formulation development. This ensures flexibility for both large-scale manufacturing and pilot testing.

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