It discusses the role of SOCs as a potential discursive and institutional vector of social classification by gender in processes of information and knowledge circulation. The concepts of discourse, gender, intersectionality, social construction and gender performativity are presented in the context of the social organization of information and knowledge. We analyze the possibilities of intersectional conception of SOCs in the present time, having the theme of gender as an empirical approach. A critical genealogical analysis of the Thesaurus multilingue of the European Union (Eurovoc) and of the Eige's Gender equality glossary and thesaurus with focus on the theme related to the social construction of gender and performativity is carried out. The analysis is oriented by the discursive categories: event, series, regularity and conditions of possibility.