guacetisal guacetisal guacetisal is a drug that has been used to treat inflammatory respiratory diseases. chemically, it is an ester resulting from the combination of aspirin and guaiacol. guacetisalclinical datatrade namesbroncaspin; balsacetil; guaiaspir; prontomucilother namesaspirin guaiacol ester; o-methoxyphenyl salicylate acetateatc coden02ba14 (who) identifiers iupac name 2-methoxyphenyl 2-acetoxybenzoate cas number55482-89-8pubchem cid68749chemspider61994uniit6ekb9v2o2chemblchembl2105097comptox dashboard (epa)dtxsid40204060 echa infocard100.054.221 chemical and physical dataformulac16h14o5molar mass286.283 g·mol−13d model (jsmol)interactive imagemelting point72 to 74.5 °c (161.6 to 166.1 °f) smiles o=c(oc1ccccc1c(=o)oc2ccccc2oc)c inchi inchi=1s/c16h14o5/c1-11(17)20-13-8-4-3-7-12(13)16(18)21-15-10-6-5-9-14(15)19-2/h3-10h,1-2h3key:hsjfyryggklqbt-uhfffaoysa-n