WARRANT AGREEMENT THIS WARRANT AGREEMENT, dated as of February 11, 2000, by and between CHROMATICS COLOR SCIENCES INTERNATIONAL, INC., a New York corporation (the "Issuer"), and LB I GROUP INC. (Lehman Brothers Group Inc.), a Delaware corporation (the...Warrant Agreement • February 23rd, 2000 • Chromatics Color Sciences International Inc • Laboratory analytical instruments • New York
Exhibit 4.3 PREFERRED STOCK PURCHASE AGREEMENT This Preferred Stock Purchase Agreement (the "Agreement") is made and entered into as of the 11th day of February 2000, by and between CHROMATICS COLOR SCIENCES INTERNATIONAL, INC., a New York corporation...Preferred Stock Purchase Agreement • February 23rd, 2000 • Chromatics Color Sciences International Inc • Laboratory analytical instruments • New York
