PeerJ Author 135 Points Contributions by role Author 135 Contributions by subject area Organic Chemistry (other) Organic Compounds Photochemistry Arturo De-Nova PeerJ Author Summary Organic Chemistry (other) Organic Compounds Photochemistry Past or current institution affiliations Universidad Autónoma de San Luis Potosí PeerJ Contributions Articles 1 March 22, 2022 GC-MS analysis of phytochemical compounds of Opuntia megarrhiza (Cactaceae), an endangered plant of Mexico Madeleyne Cupido, Arturo De-Nova, María L. Guerrero-González, Francisco Javier Pérez-Vázquez, Karen Beatriz Méndez-Rodríguez, Pablo Delgado-Sánchez https://doi.org/10.7717/peerj-ochem.5