2-Hydroxy-4-Methoxybenzophenone-5-Sulfonic Acid  Hydrate

The chemical structure of 2-hydroxy-4-methoxybenzophenone-5-sulfonic acid hydrate is quite exquisite. The main structure of this compound is benzophenone, which is connected with a hydroxyl group at position 2, a methoxy group at position 4, and a sulfonic acid group at position 5, and has a water synthesis component.
Looking at its core benzophenone structure, it is like two benzene rings are connected by carbonyl groups. This carbonyl group acts as a bond to maintain the benzene rings on both sides, giving the molecule a specific chemical activity and spatial configuration. The hydroxyl group at position 2 is active and can participate in the formation of hydrogen bonds, which has a significant impact on the interaction between molecules, or changes its solubility, melting point and other physical properties. The methoxy group at position 4 affects the electron cloud density of the benzene ring, and the chemical reaction activity and selectivity of the molecule.
The sulfonic acid group at position 5, because of its strong hydrophilicity, greatly improves the water solubility of the compound, and is of great significance in many fields. Its hydrated part binds to the main body in a specific ratio, or affects the crystal structure and stability.
Overall, 2-hydroxy-4-methoxybenzophenone-5-sulfonic acid hydrate has a unique structure, and each group synergistically endows it with various chemical and physical properties, which may have broad application prospects in materials, medicine and other fields.

2-Hydroxy-4-methoxybenzophenone-5-sulfonic acid hydrate, which has a wide range of uses. In the field of daily chemicals, it is often used as a key ingredient in sunscreens. Because it can effectively absorb ultraviolet rays, especially medium-wave ultraviolet rays (UVB) and long-wave ultraviolet rays (UVA), it can build a protective barrier for the skin and resist ultraviolet damage to the skin, such as sunburn, tanning, photoaging, etc., it is common in sunscreens, lotions, creams and other skin care products.
In the plastics industry, it plays the role of light stabilizer. Plastic products are prone to aging and performance degradation when exposed to light for a long time. After adding this substance, it can delay the aging process of plastics due to light-induced degradation, discoloration, and embrittlement by means of the principle of absorbing ultraviolet rays and converting them into heat energy loss. It significantly improves the weather resistance and service life of plastic products. It is widely used in various plastic products such as polyethylene, polypropylene, and polyvinyl chloride.
In the coating industry, it also plays an important role. Coatings are prone to problems such as pulverization, fading, and loss of light when exposed to light. After the substance is added to the coating, it can absorb ultraviolet rays, protect the film-forming substances and pigments in the coating, enhance the light resistance and weather resistance of the coating, and keep the surface of the coated object in bright color and good appearance for a long time. It is widely used in architectural coatings, automotive coatings and many other coating products.
In addition, in the field of inks, 2-hydroxy-4-methoxybenzophenone-5-sulfonic acid hydrate can enhance the light resistance of inks. Ink is printed on the surface of paper, fabrics and other materials, and it is easy to fade when exposed to light. Adding this material can improve the anti-light fading ability of the ink, ensure the long-term clarity and stability of the color of the printed matter, and is widely used in various printing inks, such as book printing inks, packaging printing inks, etc.

2-Hydroxy-4-methoxybenzophenone-5-sulfonic acid hydrate is a kind of organic compound. Its physical properties are particularly important and are related to many applications of this compound.
First of all, its appearance is often white to light yellow crystalline powder. This form is easy to handle and measure in many industrial and scientific applications. Its light color also shows that its purity and stability are good, and it is less disturbed by impurities.
As for solubility, this compound exhibits a certain solubility in water. Due to the existence of sulfonic acid groups, it can form hydrogen bonds with water molecules, so it can be dispersed in the aqueous phase. However, its solubility is not infinite, and it may reach a solution equilibrium under certain conditions. In organic solvents, such as ethanol and acetone, it also has moderate solubility, which makes it widely used in the preparation of various solution systems.
Melting point is crucial for its identification and quality control. Its melting point is relatively fixed. If the sample purity is very high, the melting point range should be quite narrow. By accurately measuring the melting point, the purity of this compound can be judged. If the melting point deviates too much from the theoretical value, it indicates that it may contain impurities.
In terms of stability, 2-hydroxy-4-methoxybenzophenone-5-sulfonic acid hydrate is relatively stable under conventional conditions. When exposed to high temperatures, strong light, or specific chemical reagents, a chemical reaction may occur. For example, long-term exposure to strong light, because its molecular structure contains a conjugated system, or induces a luminescent chemical reaction, resulting in structural changes.
Density is also an important physical property. Although the value of density seems ordinary, it is of great significance in the process of mixing and separation in industrial production. Materials of different densities will have different distributions in liquid systems, so a reasonable process can be designed to achieve the purpose of separation or mixing.
In summary, the physical properties of 2-hydroxy-4-methoxybenzophenone-5-sulfonic acid hydrate, such as appearance, solubility, melting point, stability, and density, have a profound impact on its application in various fields, and scientific research and industrial production need to be carefully considered.

The synthesis of 2-hydroxy-4-methoxybenzophenone-5-sulfonic acid hydrate is an important topic in organic synthesis. To prepare this substance, several ways can be followed.
First, benzophenone derivatives are used as starting materials. First, a specific substituted benzophenone is taken. The hydrogen atom at a specific position in the benzene ring needs to undergo a specific substitution reaction to introduce functional groups such as hydroxyl and methoxy. Under suitable reaction conditions, such as selecting an appropriate catalyst and controlling the reaction temperature and time, the reactant can be precisely substituted at the corresponding check point of the benzene ring to obtain an intermediate containing hydroxyl and methoxy groups.
Then, for this intermediate, if the sulfonic acid group is to be introduced, a sulfonation reaction can be used. Concentrated sulfuric acid or fuming sulfuric acid are used as sulfonation reagents, and the reaction conditions are precisely controlled according to the kinetic and thermodynamic principles of the reaction, so that the sulfonic acid group is successfully connected to the target benzene ring check point to generate 2-hydroxy-4-methoxybenzophenone-5-sulfonic acid. After the reaction is completed, appropriate separation and purification steps, such as extraction, recrystallization, etc., remove impurities and improve the purity of the product. Finally, through the hydration step, the product binds to water molecules to obtain 2-hydroxy-4-methoxybenzophenone-5-sulfonic acid hydrate
Second, other compounds with suitable functional groups can also be used as starting materials to construct the target molecular structure through multi-step reactions. For example, benzoic acid derivatives containing specific substituents are used as starting materials, and after condensation with phenolic compounds, benzophenone skeletons are first formed, and then other functional groups are introduced in turn. The subsequent steps are similar to the previous ones. After sulfonation, separation and purification and hydration, the final product is obtained.
During the synthesis process, each step of the reaction requires strict control of the reaction conditions. Due to subtle differences in reaction conditions, the yield and purity of the product may be affected. And the separation and purification steps are also crucial, which are related to the quality of the final product.

During the use of 2-hydroxy-4-methoxybenzophenone-5-sulfonic acid hydrate, many things need to be paid attention to. This is a fine chemical with unique chemical properties, and it must be strictly followed when using it.
The first thing is about safety protection. Because of its certain chemical activity, appropriate protective equipment should be worn when contacting. Operators should wear protective gloves to avoid direct contact with the skin to prevent irritation or allergies. Protective glasses and masks should also be worn to prevent dust or solution from accidentally entering the eyes, inhaling the respiratory tract, and causing physical discomfort.
Secondly, storage conditions should not be ignored. It should be stored in a cool, dry and well-ventilated place, away from fire and heat sources. Because it is more sensitive to temperature and humidity, improper storage or deterioration will affect the use effect. Store separately from oxidizing agents, acids, alkalis, etc. to avoid chemical reactions.
Furthermore, precise control of the dosage during use is extremely critical. This substance is mostly used for specific chemical reactions or product preparation, and the dosage depends on the specific reaction requirements and formula. If the dosage is too small, it may be difficult to achieve the expected effect; if the dosage is too large, it will not only be wasted, but may also cause side reactions and affect the quality of the product.
In addition, the control of the reaction conditions during use is also the focus. Pay attention to factors such as reaction temperature, time and pH, which have a great impact on its reaction process and product characteristics. Operate strictly in accordance with the established process parameters to ensure the smooth progress of the reaction and produce qualified products.
After use, properly dispose of the remaining substances and waste. It should not be dumped at will, but should be disposed of in accordance with relevant environmental protection regulations to prevent environmental pollution. For containers containing this substance, it is also necessary to properly dispose of it to ensure that no residual substances leak.