Molecular formula:Na2SeO3 CAS:10102-18-8 EINECS :233-267-9 RTECS:VS7350000 Executive standard:Q / 370911THW018-2017 Active ingredient:45.1% -46.1% Packing:25KG/D (packed with inner white, outer black double polyethylene bags, outer packaging is full paper barrel.) Storage conditions:Feed grade sodium selenite should be stored in a cool, dry place. It is strictly prohibited to mix with other items. Manufacturer:HAVAY