Your producer and distributor of reference materials

(11E,13E)-6-[5-(4,5-dihydroxy-4,6-dimethyloxan-2-yl)oxy-4-(dimethylamino)-3-hydroxy-6-methyloxan-2-yl]oxy-16-ethyl-4-hydroxy-15-[(5-hydroxy-3,4-dimethoxy-6-methyloxan-2-yl)oxymethyl]-7-(2-hydroxyethyl)-5,9,13-trimethyl-1-oxacyclohexadeca-11,13-diene-2,10-dione