structural formula physical competition number 014x molecular formula c15h11i4no4 molecular weight 776.87 label 2-thyroxine, o-(4-hydroxy-3,5-diiodophenyl)-3,5-diiodo-l-tyrosine, d-alpha-tocopherol, levothyroxine, 3,5,3′,5′-tetraiodothyronine, 3,3′,5,5′-tetraiodo-l-thyronine numbering system physical property data toxicological data ecological data molecular structure data computing chemical data more properties and stability storage method synthesis method purpose numbering system cas number:51-48-9 mdl number:mfcd00002595 einecs number:200-101-1 rtecs number:yp2833500 brn number:2228515...