1-Oxa-6,8-diazaspiro[4.5]dec-6-ene-10-carboxylicacid, 7-amino-9-nonyl-, 7-[(aminoiminomethyl)amino]heptyl ester, (5a,9b,10b)-(+)-; (+)-Crambine B; Crambescin B; Crambescine B; Crambine B
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