2-Amino-3-benzyloxypyridine CAS 24016-03-3 Heterocycle series; Dye intermediates; Organic raw materials;
2-Amino-5-fluorobenzoic acid CAS 446-08-2 inotungamira yakakosha pakugadzirwa kwemishonga, mishonga yesora, zvinodzora kukura kwezvirimwa uye fungicides emhando yequinoline.
2-Chloro-4-nitrobenzoic acid CAS 99-60-5 Ichena kana yakachenuruka tsono yero kana poda crystal. Kunyungudika 142-143°C (139-141°C). Soluble mumvura inopisa, doro uye inopisa benzene.
4-Amino-3-nitrobenzoic acid CAS 1588-83-6 inoshandiswa sedhayi yepakati
2-Amino-5-nitropyridine CAS 4214-76-0 inotorwa kubva kune nitration ye2-aminopyridine. Patembiricha ye50 °C, 2-aminopyridine yakawedzerwa kune yakanyungudutswa sulfuric acid, uyezve fuming nitric acid yakawedzerwa inodonha, uye tembiricha haina kudarika 50 °C. Gadzirisa pa45°C kwe2h, uye kurunga pakamuri tembiricha kwe4h. Mhinduro yekugadzirisa yakadururwa muchando chakapwanyika, uye pH yakagadziridzwa kusvika 6 nekuwedzera ammonia mvura pasi pe5 ° C, uye makristasi akaiswa. Sefa uye woomesa. Recrystallization nemvura kuti uwane yakacheneruka yero maplatelet, goho 75%
2-Hydroxy-5-nitropyridine CAS 5418-51-9 Yellow tsono makristasi. Kunyungudika 184-187°C (188-191°C). Soluble mumvura inopisa uye alkaline solution, isinganyunguriki mune general organic solvents.
