18431-73-7 22083-66-5 2520-24-3 D-erythro-alpha-D-galacto-Octopyranoside, methyl 6,8-dideoxy-6-(((4-ethyl-1-methyl-2-pyrrolidinyl)carbonyl)amino)-1-thio-, (2S-trans)- Lincomycin B Lincomycin-B