The factory has 3000L reactors 20sets, 5000L reactors 15sets, and equipped with professional testing instruments and nuclear magnetic equipment.
Located in the beautiful kite city of Weifang, Shandong Province, China, as a supplier of organic intermediates, pharmaceutical intermediates, pesticide intermediates, flavours, fragrances and other chemical products, Shandong Believe chemical Pte., Ltd. will create added value for customers around the world.
2-Amino-3-benzyloxypyridine CAS 24016-03-3 Heterocycle series; Dye intermediates; Organic raw materials;
2-Amino-5-fluorobenzoic acid CAS 446-08-2 is a very important precursor for the synthesis of pharmaceuticals, herbicides, plant growth regulators and fungicides of the quinoline type.
2-Chloro-4-nitrobenzoic acid CAS 99-60-5 White or pale yellow needle or powder crystal. Melting point 142-143°C (139-141°C). Soluble in hot water, alcohol and hot benzene.
4-Amino-3-nitrobenzoic acid CAS 1588-83-6 used as dye intermediate
2-Amino-5-nitropyridine CAS 4214-76-0 is derived from the nitration of 2-aminopyridine. At a temperature of 50 °C, 2-aminopyridine was added to concentrated sulfuric acid, and then fuming nitric acid was added dropwise, and the temperature did not exceed 50 °C. Incubate at 45°C for 2h, and stir at room temperature for 4h. The reaction solution was poured into crushed ice, and the pH was adjusted to 6 by adding ammonia water below 5°C, and crystals were precipitated. Filter and dry. Recrystallization with water to obtain pale yellow platelets, yield 75%
2-Hydroxy-5-nitropyridine CAS 5418-51-9 Yellow needle crystals. Melting point 184-187°C (188-191°C). Soluble in hot water and alkaline solution, insoluble in general organic solvents.
