IUPAC Name: (23E,25E,27E,29E,31E,33E,35E)-22-[(2R,4S,5S)-4-amino-3,5-dihydroxy-6-methyloxan-2-yl]oxy-38-[7-(4-aminophenyl)-5-hydroxy-4-methyl-7-oxoheptan-2-yl]-10,12,14,18,20-pentahydroxy-37-methyl-2,4,8,16-tetraoxo-1-oxacyclooctatriaconta-23,25,27,29,31,33,35-heptaene-19-carboxylic acid | CAS Registry Number: 11014-70-3 Synonyms: Levorin, Levorina, Levorine [French], Levorinum [Latin], Levorin [INN], Levorina [Spanish], Antibiotic of the polyene series, obtained from cultures of Actinomyces levoris, or the same substance produced by any other means