Name the chemical compound with the lowest standard molar entropy whose safety classification and labeling is Regulation EC No. 1272/2008.
select ?ent where { ?ent wdt:P31 wd:Q11173 . ?ent wdt:P3071 ?obj . ?ent wdt:P4952 wd:Q2005334. } ORDER BY ASC(?obj)LIMIT 5 
chemical compound: Q11173 regulation (ec) no. 1272/2008: Q2005334