Basic

CAS No.	87081-35-4
Product Name	Leptomycin B
Synonyms	Antibiotic CI 940; Antibiotic CL 1957A; CI-940; CL 1957A; Elactocin; Mantuamycin; NSC 364372; PD 114720; 2,10,12,16,18-Nonadecapentaenoic acid, 19-(3,6-dihydro-3-methyl-6-oxo-2H-pyran-2-yl)-17-ethyl-6-hydroxy-3,5,7,9,11,15-hexamethyl-8-oxo-; 2,10,12,16,18-Nonadecapentanoic acid, 19-(3,6-dihydro-3-methyl-6-oxo-2H-pyran-2-yl)-17-ethyl-6-hydroxy-3,5,7,9,11,15-hexamethyl-8-oxo-; (2E,10E,12E,16E,18E)-17-ethyl-6-hydroxy-3,5,7,9,11,15-hexamethyl-19-(3-methyl-6-oxo-3,6-dihydro-2H-pyran-2-yl)-8-oxononadeca-2,10,12,16,18-pentaenoic acid; (2E,5S,6R,7S,9R,10E,12E,15R,16Z,18E)-17-ethyl-6-hydroxy-3,5,7,9,11,15-hexamethyl-19-[(2R,3S)-3-methyl-6-oxo-3,6-dihydro-2H-pyran-2-yl]-8-oxononadeca-2,10,12,16,18-pentaenoic acid; (2E,5S,6R,7S,9R,10E,12E,15R,16Z,18E)-17-ethyl-6-hydroxy-3,5,7,9,11,15-hexamethyl-19-[(2S,3S)-3-methyl-6-oxo-3,6-dihydro-2H-pyran-2-yl]-8-oxononadeca-2,10,12,16,18-pentaenoic acid
Molecular Formula	C33H48O6
Molecular Weight	540.7306

Physical property

Density	1.072g/cm3
Boiling point	725.8°C at 760 mmHg
Flash point	224.7°C
Refractive index	1.542