1-Naphthalenecarboxylic acid, 2-hydroxy-7-methoxy-5-methyl-, 2,3,8,9-tetradehydro-6-((2,6-dideoxy-2-(methylamino)-alpha-D-galactopyranosyl)oxy)-1a-(1,2-dihydroxyethyl)-1a,5,6,9a-tetrahydrocyclopenta(5,6)cyclonon(1,2-b)oxiren-5-yl ester 79633-17-3 Neocarzinostatin chromophore B