20-(2,10-Bis(sulfooxy)undecyl)-16,18-bis(sulfooxy)oxacyclotriacontan-2-one 85756-55-4 Antibiotic 299B Dihydrodotricolide MG 299-B Oxacyclotriacontan-2-one, 20-(2,10-bis(sulfooxy)undecyl)-16,18-bis(sulfooxy)-