136286-49-2 FR 901366 L-Cysteine, N-acetyl-S-(4,4a,5,6,7,12,12a,12b-octahydro-4a,8,12a,12b-tetrahydroxy-3-methyl-1,7,12-trioxobenz(a)anthracen-6a(1H)-yl)- WS 009A WS009 A