Exhibit 21.1

SUBSIDIARIES OF REGISTRANT

1.	ImmunoPharmaceutics, Inc.
	100% Owned Subsidiary
	Incorporated in the State of California
2.	EP-ET, LLC
	100% Owned Subsidiary
	A limited liability company formed in the State of Delaware
3.	Encysive, L.P.
	100% Owned Subsidiary
	A limited partnership formed in the State of Delaware
4.	Encysive (UK) Limited
	100% Owned Subsidiary of Encysive, L.P.
	A private company formed in the United Kingdom
5.	Encysive Germany GmbH
	100% Owned Subsidiary of Encysive (UK) Limited
	A private company formed in Germany
6.	Encysive Canada, Inc.
	100% Owned Subsidiary
	A private company formed in Canada
7.	Argatroban Royalty Sub, LLC.
	100% Owned Subsidiary
	A limited liability company formed in the State of Delaware