petrichloral petrichloral petrichloral (pentaerythritol chloral) is a sedative and hypnotic chloral hydrate prodrug. it is a schedule iv drug in the usa. petrichloralclinical dataatc codenoneidentifiers iupac name 2,2,2-trichloro-1-propoxy]ethanol cas number78-12-6 ypubchem cid6519chemspider6272 nuniiu49lid4uyjchemical and physical dataformulac13h16cl12o8molar mass725.66 g·mol−13d model (jsmol)interactive image smiles clc(cl)(cl)c(o)occ(coc(o)c(cl)(cl)cl)(coc(o)c(cl)(cl)cl)coc(o)c(cl)(cl)cl inchi inchi=1s/c13h16cl12o8/c14-10(15,16)5(26)30-1-9(2-31-6(27)11(17,18)19,3-32-7(28)12(20,21)22)4-33-8(29)13(23,24)25/h5-8,26-29h,1-4h2 nkey:okackalpxhbema-uhfffaoysa-n n ny (what is this?) (verify)