The main uses of 1-mercury, 3-arsenic, and 4-aminobenzoic acid are related to many fields such as medicine, chemical industry, and agriculture.
Mercury was often used in alchemy in ancient times, and alchemists wanted the medicine of immortality. Mercury is an important thing. In today's field of medicine, mercury has also been used in the past. For example, mercury agents were used to treat diseases such as syphilis, but due to the toxicity of mercury, they are now less and less used. In the chemical industry, mercury can be used as a catalyst, which can promote the reaction to be carried out more efficiently in certain chemical reactions. For example, in the production of vinyl chloride, mercury chloride can be used as a catalyst to accelerate the reaction of acetylene and hydrogen chloride.
Arsenic, in medicine, has been known to have certain medicinal value in ancient times. A small amount of arsenic can be used as medicine to treat some diseases, such as scabies and other skin diseases. In modern times, although the medicinal use of arsenic is decreasing, in the field of pesticide manufacturing, arsenic compounds have been widely used. Such as lead arsenate, calcium arsenate, etc., can be used as insecticides and can effectively control crop pests, but its toxicity to the environment and organisms has been restricted.
Aminobenzoic acid, in the field of medicine, is an important pharmaceutical intermediate. The synthesis of many drugs needs to be based on this, such as ethyl paraben, a local anesthetic, which can be used for surface anesthesia. In the cosmetics industry, p-aminobenzoic acid and its derivatives are often used as sunscreens to absorb ultraviolet rays and protect the skin from damage. In the food industry, it can be used as a food additive for the preservation and preservation of certain foods.
These three have their own uses in different fields, but they should also be used with caution to avoid their harm to the human body and the environment.

To prepare 1-ether-3-alkynyl-4-aminobenzoic acid, there are three methods.
First, benzoic acid is used as the beginning, and it is prepared by halogenation, etherification, alkynylation and aminylation. First, benzoic acid is reacted with halogenating agents such as phosphorus trichloride, phosphorus pentachloride or sulfinyl chloride under suitable conditions to obtain halogenated benzoic acid. Halogenated benzoic acid and alcohol undergo nucleophilic substitution under alkali catalysis to form ether bonds. Then, through alkynylation, alkynyl groups are introduced by substituting with halogen atoms with suitable alkyne reagents. Finally, by means of the amination reaction, ammonia or ammonia derivatives are used to react with suitable reaction check points to obtain 1-ether-3-alkyne-4-aminobenzoic acid. The steps of this path are clear, and the reaction conditions of each step are relatively mature. However, there are many steps, and the reaction conditions and yield of each step need to be carefully controlled.
Second, start from the raw materials containing alkynyl groups and amino groups. The alkynyl-containing compound can be reacted with the ether-containing halogen first, and the ether-alkynyl structure can be constructed by nucleophilic substitution. Then other functional groups can be converted into carboxyl groups by suitable reactions, while the amino group is retained, and the final product can be obtained. The choice of starting materials for this approach is special, which can reduce the reaction steps and shorten the synthesis route. However, it may be difficult to obtain the raw materials, and the reaction conditions may need to be carefully regulated.
Third, the ether group and carboxyl group raw materials are used as the starting point. First, the alkynyl group is introduced at the carboxyl ortho-position by a specific reaction, which can be achieved by metal-catalyzed alkynylation. Then, the amino group is introduced through the amination reaction at another suitable position to obtain 1-ether-3-alkynyl-4-aminobenzoic acid. The advantage of this method is that the raw materials are common, and the reaction steps are relatively simple. However, it is necessary to pay attention to the effect of each step on the existing functional groups and
All synthesis methods have their own advantages and disadvantages. In actual operation, the optimal method is selected according to the comprehensive consideration of the availability of raw materials, the feasibility of reaction conditions, the purity and yield requirements of the target product.

1-Naphthalene-3-phenol-4-aminoaniline is a kind of organic compound. Its physical properties are quite unique and it has applications in many fields.
This substance is mostly solid at room temperature and has a relatively stable texture. Looking at its appearance, it is often a white to light yellow crystalline powder with a certain luster. Its melting point is [specific melting point value]. At this temperature, the substance gradually melts from solid to liquid. This property is crucial in the identification and purification process. Its purity can be judged by accurately measuring the melting point.
1-naphthalene-3-phenol-4-aminoaniline exhibits a certain solubility in organic solvents such as ethanol and acetone in terms of solubility. Ethanol, as a common organic solvent, can form a uniform mixed system with 1-naphthalene-3-phenol-4-aminoaniline. This solubility provides convenience for its use in organic synthesis and some chemical production processes. For example, when it participates in a specific chemical reaction as a reaction raw material, it can be dissolved by an organic solvent to increase the reaction contact area and speed up the reaction process.
In addition, the density of the substance is [specific density value]. As one of the inherent properties of the substance, density is also of great significance to its operation in practical applications. In links such as storage and transportation, packaging and space utilization should be reasonably arranged according to its density characteristics to ensure the safety and efficiency of the process.
Furthermore, the stability of 1-naphthalene-3-phenol-4-aminoaniline is also worthy of attention. Under normal environmental conditions, its chemical properties are relatively stable, but in the case of extreme chemical environments such as strong acids and alkalis, or special physical conditions such as high temperature and strong light, chemical reactions may occur, resulting in changes in its structure and properties. Therefore, when storing, it is necessary to choose a dry, cool place away from strong corrosive substances to maintain its inherent physical properties and chemical activities.

When storing and transporting 1-mercury, 3-lead, and 4-acetaminophen, there are various precautions, which are described as follows:
Mercury is highly toxic, liquid at room temperature, volatile, and its vapor is inhaled into the human body, which is very dangerous. When storing, it must be sealed in a sturdy and corrosion-resistant container to prevent leakage. Containers should be placed in a cool, dry, well-ventilated place, away from heat and fire sources, and should not be co-stored with strong oxidants to avoid chemical reactions. When transporting mercury, vehicles or vessels must ensure good airtightness and leak-proof devices. Escort personnel should be familiar with the characteristics of mercury and emergency disposal methods. Check regularly on the way. If there is any leakage, deal with it quickly according to the established procedures to prevent pollution of the environment and endanger everyone.
Lead is also harmful and toxic. When storing lead, a dry, non-corrosive gas place should be selected to avoid moisture and rust. Its packaging should be tight to prevent lead dust from escaping. During transportation, ensure that the packaging is not damaged to avoid package rupture caused by collision. Vehicles or ships should be clean and free of other substances that may react with lead. Be sure to handle it with care during loading and unloading to reduce lead dust flying.
Acetaminophen is a commonly used drug. Storage should be in a cool, dry place, and the temperature should be controlled within the specified range to prevent heat deterioration. It is sensitive to humidity, and moisture can easily affect the efficacy of the drug, so the packaging should have a moisture-proof function. During transportation, the vehicle or warehouse should be kept dry to avoid rain and water immersion. Be careful when loading and unloading to prevent damage to the packaging and exposure of the drug. At the same time, follow the specifications of drug transportation to ensure the quality and safety of the drug and ensure the efficacy and safety of the patient's medication.

I have never heard of "1-%E6%BA%B4-3-%E6%B0%9F-4-%E7%94%B2%E6%B0%A7%E5%9F%BA%E8%8B%AF" the price of this object in the market. The expression here may be that the chemical symbols and terms of today are mixed with numbers and special symbols, which is not the title of the ancient famous object I am familiar with.
In today's world, science and technology are changing with each passing day, and the species are complex. The newly created name is equivalent to the number of sand in the Ganges River. In ancient times, without such fine chemical knowledge, it is difficult to know the value range of this object in the market.
If it is common sense, the price of the goods in the market often depends on factors such as supply and demand, origin, texture, and difficulty in production. However, since the "1-%E6%BA%B4-3-%E6%B0%9F-4-%E7%94%B2%E6%B0%A7%E5%9F%BA%E8%8B%AF" is not clear, how can it be said that its price? Even if there are merchants in the market, they also need to know their uses, quality, and scarcity in detail before they dare to price.
Although I have tried my best to answer this question, it is limited by my knowledge, and it is the difference between ancient and modern times. May the questioner in the future be able to state what he wants in plain language, or be able to answer it with certainty.