Tran, Ha Thai Chau, Thien Phuc Lu, Uy Khang Nguyen, Trung Tin Ta, Thi Thu Trinh Kim, Viet Hung Tran, and Ngoc Tuyen Truong. 2023. “DEVELOPMENT AND VALIDATION OF LC-MS MS FOR ANALYZING POTENTIAL GENOTOXIC IMPURITY ETHYL-(E Z)-3-(2- CARBETHOXY-2-CYANOETHENYL) AMINO-1H-PYRAZOL-4- CARBOXYLAT IN ALLOPURINOL”. Cantho Journal of Medicine and Pharmacy, no. 69 (December):164-71. https://doi.org/10.58490/ctump.2023i69.976.