clopidol clopidol clopidol is an organic compound that is used as in veterinary medicine as a coccidiostat. it is prepared industrially by a multistep process from dehydroacetic acid. not to be confused with clopidogrel. clopidolclinical datatrade namescoyden, clobek(animate animal health)ahfs/drugs.cominternational drug namesatcvet codeqp51ax26 (who) identifiers iupac name 3,5-dichloro-2,6-dimethyl-pyridin-4-ol cas number2971-90-6 ypubchem cid18087chemspider17084 nunii8j763hff5nkeggd03559 ychemblchembl446918 ncomptox dashboard (epa)dtxsid8041793 echa infocard100.019.099 chemical and physical dataformulac7h7cl2nomolar mass192.04 g·mol−13d model (jsmol)interactive image smiles cc1=c(cl)c(o)=c(cl)c(c)=n1 inchi inchi=1s/c7h7cl2no/c1-3-5(8)7(11)6(9)4(2)10-3/h1-2h3,(h,10,11) nkey:zdpizlcvjaahhr-uhfffaoysa-n n ny (what is this?) (verify) the us national institute for occupational safety and health has set a recommended exposure limit (rel) for clopidol at 10 mg/m3 twa (time-weighted average) for total exposure, 5 mg/m3 twa for respiratory exposure, and 20 mg/m3 for short-term exposure. the occupational safety and health administration has set a permissible exposure limit (pel); the respiratory pel is the same as the rel, but the total exposure limit is 15 mg/m3.