2,3-Dichloropyridine (99%)

2% 2C3-dihydropyridine (99%) is widely used and has important applications in many fields such as medicine, chemical industry, and agriculture.
In the field of medicine, this is an important calcium channel blocker. It can block calcium channels on cell membranes and regulate the flow of calcium ions inside and outside cells. It has a significant effect in the treatment of cardiovascular diseases, can relax vascular smooth muscle, reduce peripheral vascular resistance, reduce blood pressure, and have a good effect on hypertension. It can also improve myocardial ischemia, improve myocardial oxygen supply, and relieve angina symptoms. It is also used in the treatment of arrhythmia, stabilize myocardial cell membrane potential, and restore normal heart rhythm.
In the chemical industry, it is an important organic synthesis intermediate. With its own special structure and reactivity, it can participate in a variety of organic synthesis reactions, provide key starting materials or reaction intermediates for the preparation of complex organic compounds, assist in the synthesis of organic molecules with specific structures and functions, and promote the research and development and production of new chemical materials.
In agriculture, 2% 2C3-dihydropyridine can be used as a feed additive for livestock and poultry. It can improve the reproductive performance of livestock and poultry, increase the sperm motility and density of breeding males, normalize the estrus cycle of females, and improve the conception rate. It can also promote the growth and development of livestock and poultry, improve the utilization rate of feed, enhance the body's antioxidant capacity, reduce the adverse effects of stress reactions on livestock and poultry, improve the immunity and disease resistance of livestock and poultry, and ensure the healthy growth of livestock and poultry.
In summary, 2% 2C3-dihydropyridine (99%) plays a key role in the fields of medicine, chemical industry, and agriculture due to its unique chemical properties and biological activities, and is of great significance to promoting the development of related industries.

2% 2C3-dihydroxysuccinic acid (99%), the process of making it is very delicate. This product is first prepared with a suitable raw material and put into a special kettle. The kettle is made of solid quality and can withstand changes in high temperature and various chemical reactions.
Then, apply a moderate temperature. The degree of temperature is related to success or failure, and must be carefully measured and strictly controlled. At the beginning, the temperature gradually rises, so that the raw material melts slowly. Its state is from solid to liquid, and the molecules are active, and the phase interacts at first. Add a specific medium, and the medium, such as the conductor, can promote the speed of the reaction and make the molecules combine in sequence.
During the reaction, the state of matter in the kettle is changeable, the color may change from light to dark, and the gas may change gradually. However, the operator does not look for a moment, and fine-tunes the temperature and pressure according to the number indicated by the instrument. The pressure is also the main reason. Under heavy pressure, the molecules are dense, and the reaction is easier.
After the reaction is completed, the crude product is obtained. The crude product contains impurities and must be refined again. Use a filter to remove the visible impurities, and then use the method of distillation to analyze the pure product according to the difference in boiling point. The distillation vessel, made of glass, is crystal clear, and hot steam is evaporating during it. After these steps, 2% 2C3-dihydroxysuccinic acid (99%) is obtained, which is pure and stable in quality and can be used in various important ways.

Above today's market, the price of 2,3-dihydropyridine (99% purity) is about [X1] yuan to [X2] yuan per kilogram. The fluctuation of its price often depends on the state of supply and demand, the price of materials and the difficulty of process.
If the market needs to be prosperous, but the amount of production is small, the price will rise; on the contrary, if the demand is weak and the production is abundant, the price will fall. The price of materials is also a major factor. If the price of materials required to make this product increases, the price of the finished product will also rise; if the price of materials decreases, the price of the finished product may decline. And the difficulty of the process is also related to the cost. If the process is complicated and labor-intensive, the price will be high; if the process is simple, the cost will decrease and the price may also decrease.
However, this price range is only a rough estimate, and the market conditions are ever-changing, or there may be differences. Businesspeople entering the market can only be appropriate when they carefully observe the market situation and take advantage of the situation.

2% 2C3-dihydropyridine (99%), the rules of storage are quite important. This material is sensitive, and it should be placed in a cool, dry and well ventilated place, and it must be kept away from fire and heat sources to avoid the risk of explosion. Its packaging should be tightly sealed to prevent moisture decomposition and deterioration.
Furthermore, it should be placed separately from oxidizing agents, acids, etc., to avoid dangerous interaction. It is appropriate to prepare suitable firefighters and leakage emergency devices. When handling, be sure to handle it with care to avoid damage to the packaging and cause material to leak out.
In addition, the storage place should be managed by a special person, record the entry and exit in detail, and check it regularly to see if there is any abnormality. In case of large changes in temperature and humidity, it is necessary to pay more attention to timely care to ensure its quality. In this way, the safe storage of 2% 2C3-dihydropyridine (99%) can be guaranteed for later use.

The quality detection standard of 2% 2C3-difluoropyridine (99%) is very important to the quality of this product.
Its appearance, when it is a colorless to light yellow transparent liquid, no visible impurities, clear and pure, as clear as autumn water, if there is turbidity or heterochromia, it does not meet the standard.
Content determination is crucial. Measured by high performance liquid chromatography (HPLC), it needs to reach more than 99.0%. This is a key indicator to determine whether it is qualified. If the balance of good and bad is measured, it must be investigated. During operation, accurately weigh an appropriate amount of sample, dissolve it with mobile phase and bandwidth evaluation, inject it into a chromatograph, and calculate the content by the peak area external standard method. < Br >
Moisture content should not be ignored. It should be less than 0.5%. If too much moisture is mixed into the defects of beautiful jade, it will affect the performance of the product. It is commonly measured by Carl Fischer method, which is a good recipe for accurate detection of moisture content.
Residual solvents, compliance is required. Residues of organic solvents such as methanol and ethanol should not exceed the relevant specified limits, because it may affect the stability and safety of the product. The residual amount can be measured by gas chromatography.
Refractive index, under specific conditions, should be 1.460 - 1.470. The unique fingerprint of this object, with identification, is accurately measured by a refractometer, which can assist in judging the purity and consistency of the product. < Br >
Density, at the specified temperature, when 1.25 - 1.28 g/cm ³, as the inherent weight characteristics of the object, measured by density to ensure that the product meets the established specifications.
The above standards complement each other and jointly build a rigorous quality inspection system of 2% 2C3-difluoropyridine (99%) to ensure that the product reaches the high quality level and is suitable for various related application scenarios.