zincophorin zincophorin zincophorin (also known as griseochelin) is an antibiotic against gram-positive bacteria and a bacterial metabolite. it is also an ionophore. it was isolated from the bacterium streptomyces griseus. zincophorin names preferred iupac name (2s)-2-propanoic acid other names griseochelin; antibiotic m144255 identifiers cas number 95673-10-291920-88-6 3d model (jsmol) interactive image chebi chebi:141377 chemspider 9932403 pubchem cid 11757702 inchi inchi=1s/c33h60o7/c1-10-13-19(2)18-22(5)29(35)20(3)14-11-12-15-27(34)23(6)30(36)25(8)31(37)26(9)32-21(4)16-17-28(40-32)24(7)33(38)39/h11,14,18-21,23-32,34-37h,10,12-13,15-17h2,1-9h3,(h,38,39)/b14-11+,22-18+/t19-,20-,21+,23+,24+,25+,26+,27-,28+,29-,30+,31+,32+/m1/s1key: xmciuldtdfjack-fxlachkasa-n smiles ccc(c)/c=c(\c)/((c)/c=c/cc((c)((c)((c)1(cc(o1)(c)c(=o)o)c)o)o)o)o properties chemical formula c33h60o7 molar mass 568.836 g·mol−1 except where otherwise noted, data are given for materials in their standard state (at 25 °c , 100 kpa). infobox references