Simultaneous analysis of 21 sulfonamides, trimethoprim, ormetoprim, and dapsone in fish and shrimp samples by LC-MS/MS using the QuEChERS method was written by Hong, Songhee;Kwon, Namji;Kang, Hui-Seung;Jang, Eunyoung;Kim, Hyojeong;Han, Eunyoung. And the article was included in International Journal of Environmental Analytical Chemistry.Safety of 4-Amino-N-(6-methoxypyrimidin-4-yl)benzenesulfonamide This article mentions the following:
Antibiotics and antibacterials, including sulfonamides, are components of the veterinary armamentarium used to prevent and treat diseases in seafood. However, the accumulation of veterinary drug residues in seafood can cause food safety concerns. This study aimed to verify the quant. anal. method for sulfonamides, trimethoprim, ormetoprim, and dapsone in seafood and to apply it to fish and shrimp distributed in Korean market. In the present study, three types of matrixes (shrimp, flatfish, and eels) were used to detect drugs (n = 25) (sulfonamides (n = 21), trimethoprim, ormetoprim, dapsone, and monoacetyldapsone). Matrixes were extracted with acetonitrile and mixed with 2 g of magnesium sulfate and 1 g of sodium acetate. After agitation, supernatants were mixed with 300 mg of C18 and centrifuged again. Then the supernatant was evaporated, dissolved in 50% methanol, and filtered through a PTFE filter. Extracts (5 μl) were then injected into the liquid chromatog.-tandem mass spectrometry system. The method was validated in terms of limit of detection, limit of quantitation, decision limit, decision capability, matrix effects, intra/inter-day accuracies, precisions, and stabilities and the method was applied to fish and shrimp sold in the Korean market. The validation results were found to be satisfactory. As a result of applying the validated method to fish and shrimp samples purchased from the Korean market, sulfacetamide, sulfadimethoxine, sulfamethoxazole, and sulfanilamide were detected in shrimp samples. The devised method for analyzing antibiotics in seafood samples enables antibiotic detection in fish samples distributed in the global market and should aid the adoption of preventative measures. In the experiment, the researchers used many compounds, for example, 4-Amino-N-(6-methoxypyrimidin-4-yl)benzenesulfonamide (cas: 1220-83-3Safety of 4-Amino-N-(6-methoxypyrimidin-4-yl)benzenesulfonamide).
4-Amino-N-(6-methoxypyrimidin-4-yl)benzenesulfonamide (cas: 1220-83-3) belongs to pyrimidine derivatives. The pyrimidine nitrogenous bases are derived from the organic compound pyrimidine through the addition of various functional groups. Pyrimidine derivatives also play an important role in drug development, either in concert with other compounds or on their own.Safety of 4-Amino-N-(6-methoxypyrimidin-4-yl)benzenesulfonamide
Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia