Alcaftadine Impurity 6 with CAS No:1935692-46-8 is an impurity standard of Alcaftadine. Alcaftadine is an antihistamine for allergic conjunctivitis. Relieves itching and redness in the eyes due to allergies. Alcaftadine is typically used as eye drops and requires a prescription. Buy high quality Alcaftadine Impurity 6 from from Molsyns Research. Molsyns Research is one of the leading manufacturer and exporter of Alcaftadine Impurity 6