ALCHAB, F. A. Methyl paraben detection in cosmetic products by synthesis of azo compounds using infrared spectroscopy. Latakia University Journal -Medical Sciences Series, [S. l.], v. 41, n. 2, 2019. Disponível em: https://journal.latakia-univ.edu.sy/index.php/hlthscnc/article/view/8576. Acesso em: 29 jul. 2025.