Dropper A1cUse our Dropper A1c for laboratory and point-of-care hemoglobin A1c quality control. Features three years frozen (from date of manufacture) and six months of refrigerated open vial stability for reduced waste – plus dropper bottles for easy dispensing. Twenty-one days of open vial room temperature stability eliminates storage problems and provides maximum portability – perfect for sites without refrigeration. Designed for use with most major immunoassay laboratory and POCT analyzers including Siemens DCA 2000/2000+/Vantage,™ Siemens Advia,® Siemens Dimension,® Roche Cobas® 501 and Ortho Vitros®.