WARRANT AGREEMENT FOR "CLASS B WARRANTS"Warrant Agreement • April 29th, 1997 • Xytronyx Inc • In vitro & in vivo diagnostic substances • New York
EXHIBIT 10.50 SUBSCRIPTION AGREEMENT SUBSCRIPTION AGREEMENT (this "Agreement") made as of the date set forth on the signature page hereof between Xytronyx, Inc., a Delaware corporation with its principal offices at 6555 Nancy Ridge Drive, Suite 200,...Subscription Agreement • April 29th, 1997 • Xytronyx Inc • In vitro & in vivo diagnostic substances • New York
SIDE LETTER NO. 1 TO THE PLACEMENT AGENCY AGREEMENTPlacement Agency Agreement • April 29th, 1997 • Xytronyx Inc • In vitro & in vivo diagnostic substances
XYTRONYX, INC.Agency Agreement • April 29th, 1997 • Xytronyx Inc • In vitro & in vivo diagnostic substances • New York
