131086-53-8

Janthinocin B is a novel macrocyclic peptide lactone antibiotic isolated from fermentations of Janthinobacterium lividum.

Janthinocin B has strong activity of anti-Gram-positive bacteria and moderate anti-Gram-negative bacteria[1].

[1] J H Johnson, et al. Janthinocins A, B and C, novel peptide lactone antibiotics produced by Janthinobacterium lividum. II. Structure elucidation. J Antibiot (Tokyo). 1990 Aug;43(8):920-30.