Iron hydroxide is a chemical compound registered under CAS number 11113-66-9, with the molecular formula FeH3O3 and a molecular weight of about 106.86 g/mol. Its EINECS (EC) number is 234-346-0. It is also known as UNII-2UA751211N; iron(3+) trihydroxide; iron(2+) dihydroxide. ReagentForLab supplies Iron hydroxide for laboratory research and bulk production; product code 262905. Send an inquiry for purity, packaging, price and lead time.