Psoralen compounds of compounds having formulae 1A-10A, 1B-10B, 1C-10C, 1D- 10D, 1E-10E, 1F-10F, 1G-10G, and 1H-5H as shown in Fig. 1, and pharmaceutically acceptable salts thereof; and their use in methods for the treatment of a cell proliferation disorder in a subject, pharmaceutical compositions containing the psoralen derivatives, a kit for performing the method, and a method for causing an auto vaccine effect in a subject using the method.