tetramethyl bisphenol f tetramethyl bisphenol f tetramethyl bisphenol f (tmbpf) is a new coating intended as a safer replacement for bisphenol a and bisphenol f to use in epoxy linings of aluminium cans and steel cans. it was previously suggested as an insulator in electronic circuit boards. tetramethyl bisphenol f names preferred iupac name 4,4′-methylenebis(2,6-dimethylphenol) other names tetramethyl bisphenol f, valpure v70 identifiers cas number 5384-21-4 3d model (jsmol) interactive image chembl chembl593206 echa infocard 100.023.980 ec number 226-378-9 pubchem cid 79345 unii jh6fv2eg7j y comptox dashboard (epa) dtxsid4063820 inchi inchi=1s/c17h20o2/c1-10-5-14(6-11(2)16(10)18)9-15-7-12(3)17(19)13(4)8-15/h5-8,18-19h,9h2,1-4h3key: azzwzmuxhalbcq-uhfffaoysa-n smiles cc1=cc(=cc(=c1o)c)cc2=cc(=c(c(=c2)c)o)c properties chemical formula c17h20o2 molar mass 256.345 g·mol−1 except where otherwise noted, data are given for materials in their standard state (at 25 °c , 100 kpa). infobox references polymerisation of tetramethyl bisphenol f occurs with epichlorohydrin when heated between 40 and 70 °c using an alkali as a catalyst to form the resin used as a coating. health and environmental effects causes serious eye irritation. may cause respiratory and skin irritation. very toxic to aquatic life. human endocrine effects according to tests tmbpf does not have any effect on the endocrine system; it does not leach out of cans because unlike bpa it is fully polymerized when deposited on the metal, so there is no free chemical to leach out. tetramethyl bisphenol f was tested on rats to see if there were effects like male or female hormones. it had almost no effects like this. however, a different study did find effects.