Zepastine is a bioactive compound. References: Williams G, Blatchford C, Mitchell JP. Evaluation of Nasal Inlet Ports Having Simplified Geometry for the Pharmacopeial Assessment of Mass Fraction of Dose Likely to Penetrate Beyond the Nasopharynx: a Preliminary Investigation. AAPS PharmSciTech. 2018 Sep 17. doi: 10.1208/s12249-018-1179-9. [Epub ahead of print] PubMed PMID: 30225778.

纯度：≥98%

CAS：28810-23-3