Alcaftadine Impuity 1 with CAS No: 147064-11-7 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 Impuity 1 from Molsyns Research. Molsyns Research is one of the leading manufacturer and exporter of Alcaftadine Impuity 1