4-27-00-00315 (Beilstein Handbook Reference) 4-Morpholineacetic acid, alpha-ester with 2,2-dichloro-N-(beta-hydroxy-alpha-(hydroxymethyl)-p-nitrophenethyl)acetamide 98145-68-7 BRN 0065752 Chloramphenicol 4-morpholineacetate