154204-06-5 2-(3,5-Dimethyl-2-oxo-4,6-octadienyl)tetrahydro-6-oxo-2H-pyran-4-acetamide 2H-Pyran-4-acetamide, 2-(3,5-dimethyl-2-oxo-4,6-octadienyl)tetrahydro-6-oxo- 6-(3,5-Dimethyl-2-oxo-4,6-octadienyl)-4-carbamoylmethyl-3,4,5,6-tetrahydro-2-pyrone Antibiotic S 632-C S-632-C S632-C