WARRANTWarrant Agreement • September 27th, 2001 • Pharmchem Inc • Services-medical laboratories • Delaware
1 Exhibit 4.6 AMENDMENT TO LOAN AND SECURITY AGREEMENT AND LIMITED WAIVER This Amendment to Loan and Security Agreement and Limited Waiver (this "Agreement") is entered into as of September 12, 2001, by and between COMERICA BANK- CALIFORNIA ("Bank")...Loan and Security Agreement • September 27th, 2001 • Pharmchem Inc • Services-medical laboratories • California
Exhibit 4.3 PHARMCHEM, INC. UNSECURED SUBORDINATED NOTE AND WARRANT PURCHASE AGREEMENT THIS UNSECURED SUBORDINATED NOTE AND WARRANT PURCHASE AGREEMENT (this "AGREEMENT") is made as of September 19, 2001 by and between PharmChem, Inc., a Delaware...Unsecured Subordinated Note and Warrant Purchase Agreement • September 27th, 2001 • Pharmchem Inc • Services-medical laboratories • Delaware
1 Exhibit 4.4 UNSECURED SUBORDINATED PROMISSORY NOTE (PHARMCHEM, INC.) PAYOR'S OBLIGATIONS UNDER THIS NOTE ARE SUBORDINATE TO ALL INDEBTEDNESS AND OBLIGATIONS OF PAYOR TO COMERICA BANK -- CALIFORNIA ("BANK") AND ARE SUBJECT TO THE TERMS OF A...Unsecured Subordinated Promissory Note • September 27th, 2001 • Pharmchem Inc • Services-medical laboratories • Delaware
