Drug intermediates are compounds that are formed during the synthesis of a pharmaceutical drug include API intermediates,chemical intermediates,medicine intermediates . They are the intermediate products that are used to create the final drug product. These intermediates are usually organic compounds that have specific chemical properties and structures that are necessary for the synthesis of the drug. The synthesis of drug intermediates involves a series of chemical reactions and purification steps that are carefully controlled to ensure the purity and quality of the final product. The drug intermediates are then further processed to create the final drug product that is used for medical treatment.Our main intermediates are 3,3′-Diindolylmethane,2,3,4,5-Tetrafluorobenzoic acid,
2, 6-Difluorobenzamide,2, 6-Difluorobenzoic Acid.China Drug intermediates,API intermediates manufacturers, welcome chemical intermediates,medicine intermediates purchasers from worldwide to visit our site to learn more.
Drug intermediates,API intermediates,chemical intermediates,medicine intermediates NANYANG CHENGPENG PHARMACEUTICAL CO.,LTD , https://www.cpbiopharmacy.com
Cultivation Techniques of Home-planted Astragalus
In recent years, the dosage of Astragalus has been increasing year by year, and limited wild resources have been subjected to predatory excavation. The shortage of supplies has kept its price high. Therefore, home-grown jaundice is increasingly favored. The growth habits and planting methods of Astragalus are as follows: The growth habits of Astragalus are drought-tolerant and cold-tolerant, they can overwinter in the fields, they are sunny, they are afraid of water, and they are not strict with the soil. Generally, the cultivated land can be planted, but loose and fertile sandy soil or Yellow loam is best, and saline land cannot be planted. New seeds can grow normally at 20°C, and Chen seeds cannot be used after one year. Roots can safely pass winter at -30°C. Seeds sown before May, when the seeds can mature. Only planted in May-July. Seeds sown before July to September can be raised and overwintered. Planted after October, most of the second year will spring. Select sites to select sites with deep soil and good irrigation and drainage conditions, apply sufficient farmyard manure, phosphorus and potash fertilizers, deep-turn 30 centimeters, make concrete leveling, make flat roofs, water, and spend 3 to 5 days. When you stick your feet, start sowing. Sowing method will be flattened, according to 20 cm row spacing of about 1 cm shallow ditch, the new seeds evenly scattered into the ditch, with Dagu smooth ditch and then watered. Keeping the surface moist, 7 to 10 days can emerge. Generally 1 to 1.5 kg per mu. After the emergence of field management, attention was paid to cultivating grasses. If you do not plan to harvest in the year, turn off the frozen water before winter, and apply the wintering fertilizer to facilitate the growth in the coming year. For pest control, if leaf blight occurs, spraying 50% carbendazim 1000 times solution or 1:1:120 Bordeaux mixture every 7-10 days in the early stage of the disease, and spray 2 or 3 times. Root rot mostly occurs in rainy years, attention is paid to drainage in the rainy season, and the humidity in the field is reduced. In the initial stage of disease, 50% thiophanate-methyl 1000-fold liquid and foliar fertilizer are sprayed. After harvesting and processing leaves withered or germinating early in the early spring, roots are dug completely to remove residual stems. In the drying process to prevent the rain, otherwise the root will turn black and affect the quality of the root. General mu production of 150 to 250 kg. The dry rate for 1 to 2 years is 35%, and for 3 years is 40%. The articles are thick, solid, and yellow. China Agricultural Network Editor