Abstract: The invention relates to seven allergens of Aspergillus versicolor which are suitable for specific diagnostics of this mold which predominantly pollutes the interior. The invention is also directed to an immunological method of detecting a sensitization to A. versicolor, especially an allergy, wherein one or more of the above-mentioned seven allergens found are employed as diagnostic markers. The invention further relates to a pharmaceutical composition which includes one or more of these seven allergens as active substance, and to the use of one or more of these seven allergens for the desensitization to A. versicolor.