4-Dimethylbenzaldehyde, which is an important chemical compound, has its main use.
First, it can be used in the synthesis field. It can be used as a medium and can be used in many compounds with special effects. For example, in the synthesis of some pain and anti-inflammatory compounds, 4-Dimethylbenzaldehyde can be used as a series of inverse compounds, and other compounds can be cleverly combined to gradually produce specific molecules of the product, so as to give the biological activity and processing function required by the product.
Second, it is also indispensable in the fragrance industry. Because of its own unique flavor, it can be used as a spice addition, adding a special fragrance to various flavors and fragrances. It is a daily flavor, used in perfumes, toiletries, etc., to make the product emit a charming fragrance; it is a edible flavor, added to candies, ingredients and other foods, with its unique flavor, 4-3, 5-dimethylbenzaldehyde can enhance its unique fragrance.
In addition, it is also effective in the synthesis. It can synthesize some high-efficiency and low-toxicity high-quality products. Through the reaction of other chemical raw materials, the obtained product can effectively prevent and control crop diseases and pests, and the impact of the environment is small, which meets the needs of today's development and helps to ensure the high efficiency of production.
Therefore, 4-3, 5-dimethylbenzaldehyde, with its special chemical properties, plays an important role in the development of various industries such as cooking, flavors, cooking, etc., and promotes the development of related technologies.

To prepare 4-bromo-3,5-dimethylbenzenesulfonate barium, the method is as follows:
First take an appropriate amount of 3,5-dimethylbenzene and place it in a reactor. Slowly add bromine dropwise to it, supplemented by light or adding an appropriate catalyst, such as iron powder. This reaction aims to replace hydrogen atoms at specific positions on the benzene ring with bromine atoms to generate 4-bromo-3,5-dimethylbenzene. When reacting, pay close attention to the reaction temperature and dropwise speed to prevent side reactions from occurring.
After 4-bromo-3,5-dimethylbenzene is obtained, move it into another reaction vessel and add concentrated sulfuric acid. The purpose of this reaction is to introduce the sulfonic acid group into the benzene ring to form 4-bromo-3,5-dimethylbenzenesulfonic acid. During the reaction, temperature control is crucial, and it is generally necessary to carry out within a specific temperature range to ensure that the sulfonic acid group accurately replaces the hydrogen atom at the target position and reduces unnecessary side reactions.
When 4-bromo-3,5-dimethylbenzenesulfonic acid is prepared, it is mixed with barium hydroxide solution. The two react, and the sulfonic acid group is combined with barium ions to obtain 4-bromo-3,5-dimethylbenzenesulfonic acid barium. After the reaction is completed, the pure 4-bromo-3,5-dimethylbenzenesulfonate product can be obtained through filtration, washing, drying and other steps.
Each step of the reaction requires fine operation, and the reaction conditions are strictly controlled, such as temperature, reactant ratio, reaction time and other factors. A slight difference may affect the purity and yield of the product. In this way, the ideal 4-bromo-3,5-dimethylbenzenesulfonate barium can be obtained.

4-Bromo-3,5-difluorobenzaldehyde is an organic compound with unique physical properties and is widely used in chemical, pharmaceutical and other fields. The following are brief descriptions of its physical properties:
- ** Appearance and Properties **: At room temperature, 4-bromo-3,5-difluorobenzaldehyde is mostly colorless to light yellow liquid, with a clear appearance and high visual recognition. This appearance feature is closely related to its molecular structure. The benzene ring, bromine atoms and fluorine atoms work together to give it a specific physical form.
- ** Melting Point and Boiling Point **: The melting point is about -20 ° C, and the boiling point is between 200-205 ° C. The lower melting point causes it to be liquid at room temperature, and the specific boiling point allows it to realize gas-liquid transformation at the corresponding temperature. This is of great significance for the separation, purification and control of reaction conditions of compounds. If the appropriate temperature is set according to the boiling point during distillation and purification, the substance can be effectively separated.
- ** Density and solubility **: The density is about 1.7 g/cm ³, which is more dense than water. If mixed with water, it will sink to the bottom. Slightly soluble in water, but easily soluble in most organic solvents, such as ethanol, ether, dichloromethane, etc. This is because the compound is an organic molecule with certain hydrophobicity, and there is a similar miscibility with organic solvents. This solubility is conducive to the selection of suitable solvents in organic synthesis and promotes the reaction.
- ** Odor **: 4-Bromo-3,5-difluorobenzaldehyde has a special pungent odor. Although it is difficult to describe accurately, its odor is unique and easy to distinguish. Note when using, because its pungent odor may irritate the respiratory tract and skin, the operation should be carried out in a well-ventilated environment.

4-% hydrazine-3,5-difluorobenzaldehyde oxime is a highly toxic substance. When storing and transporting, the following things must be paid attention to:
First, the storage device must be made of corrosion-resistant materials. Because of its strong corrosive nature, if the container is not corrosion-resistant, it is easy to be eroded and cause leakage, which can cause disaster. Therefore, containers made of glass, polytetrafluoroethylene, etc. should be selected to ensure their chemical stability and do not react with the stored materials.
Second, the storage place must be cool and dry, away from fire and heat sources. This substance can easily cause combustion or even explosion when heated or exposed to open flames. And humid environments can easily cause it to deteriorate, affecting quality and safety.
Third, when transporting, the packaging must be firm. Professional packaging materials are required, with multiple layers of protection, anti-collision and anti-vibration, to avoid damage to the packaging due to bumps.
Fourth, obvious warning signs should be set up in storage and transportation places. Explicit its toxicity and danger, so that everyone can be alert and not easily approached to prevent accidental contact.
Fifth, the operator must undergo professional training. Familiar with the characteristics of this substance, its dangers and emergency treatment methods. During storage and transportation, strictly follow the operating procedures to prevent illegal operations.
Sixth, prepare perfect emergency rescue facilities and plans. In the event of an accident such as a leak, it can respond quickly and deal with it effectively to minimize the harm. Such as equipping suitable adsorbents to deal with leaks and preparing corresponding antidotes and other emergency medicines.

4-Bromo-3,5-dimethylbenzaldehyde is an important intermediate in organic synthesis, which is used in many fields such as medicine, pesticides and materials. Its market price range will be affected by many factors, such as production process, purity requirements, market supply and demand situation, etc.
Generally speaking, the purity of this chemical has a significant impact on the price. If the purity is above 98%, the price per gram may be in the range of 30 to 80 yuan in small-scale purchasing scenarios. For higher purity such as 99% and above, the price may climb to 80 to 150 yuan per gram.
The production process also affects the price. If an efficient, environmentally friendly and cost-controllable process is used, the price may be relatively stable. On the contrary, if the process is complicated and the cost is high, the price will increase automatically.
In terms of market supply and demand, prices may rise during peak demand seasons or supply shortages; when supply exceeds demand, prices may have a downward trend.
Purchasing volume also affects the price. When purchasing on a large scale, due to the scale effect, suppliers may give price concessions, and the price per gram may drop to about 20 yuan, or even lower.
It should be noted that the market price is in dynamic changes. The specific price should be consulted with relevant chemical product suppliers and distributors, or with reference to real-time quotations on chemical product trading platforms to obtain accurate price information.