(4S-cis)-4,5-Dihydroxy-5-(hydroxymethyl)cyclopenten-1-one 49644-25-9 Antibiotic C 2554B Antibiotic XB 94 Cyclopenten-1-one, 4,5-dihydroxy-5-(hydroxymethyl)-, (4S-cis)- Pentenomycin I XB 94