A New Sterol Sulfate, Sch 572423, from a Marine Sponge, Topsentia sp. Model Digital Document Yang, Shu-Wei Buevich, Alexei Chan, Tze-Ming Smith, Michelle Lachowicz, Jean Pomponi, Shirley A. Wright, Amy E. Mierzwa, Ronald Patel, Mahesh Gullo, Vincent Chu, Min Publisher Elsevier Science Ltd. Member of HBOI Faculty Contributions