Betulinic acid
(+)-Betulinic acid, Betulic acid, Lupatic acid, NSC 113090, β-Betulinic acid
Bacitracin A
Bacitracin A1, Bacitracin A2a, NSC 4573, Baciliquin
Bacitracin complex
Bacilliquin
Byssochlamic acid
(+)-Byssochlamic Acid
Banksialactone A
Butyrolactone II
Butyrolactone V
Berkeleylactone F
BPL 79
Berkeleylactone E