2-(4-morpholinylsulfanyl)-1,3-benzothiazole

"Tiangong Kaiwu" says: "Tin," Erya "is called the collar of the West. Today, it is produced in Western Zhejiang, Liaodong, Hunan, Fujian and Guangzhou counties. However, the stone and sand are mixed, and its quality is sulfur gas, so it must be washed and then obtained."
The important thing about the bell is that tin and lead are combined, and they have a wide range of uses. Tin is soft, and it can make utensils, and its luster can be learned. It is used in daily use, such as eating utensils and decorative things. And its melting point is low, making it easy to cast, so it is often the choice of casting utensils.
Lead, its color is blue and gray, and its weight is heavy. In the case of casting bells, lead can increase the thickness of the sound of the bell. Because the sound of the bell body is related to the material. The tin makes the sound clear and clear, but the lead makes the sound mellow. The two are combined, and the sound of a bell is long and far-reaching. The bell was used in ancient times as a ceremonial vessel, a musical instrument, and was used for sacrifices, court meetings, and celebrations. Its sound is solemn and solemn, which can gather people's hearts, missionary, and respectful. It is indispensable to cast bells with tin and lead, and it is the key to achieving the wonderful sound of the bell and showing its solemn majesty.

"Tiangong Kaiwu" is a masterpiece of ancient science and technology in our country. Today, I will answer your question with its literary style.
Borax has a unique nature. The quality of borax is mostly white or light yellow, shiny and crystal-like. Its shape is usually lumpy or granular, and the quality is slightly brittle. In water, borax is soluble, but its solubility varies with temperature. When the temperature is high, it dissolves more, and when the temperature is low, it dissolves less.
On its chemical properties, borax is alkaline, and when it encounters acid, it reacts to form boric acid and other substances. This reaction is like a bubble rising, and the properties of the solution also change. It is useful in industry, medicine and other fields.
In the metallurgical industry, borax can be used as a flux. Cover because it can reduce the melting point of metals, make metals more easily fused, and remove impurities, making metals purer. In the production of glass, borax can increase the heat resistance and corrosion resistance of glass, making glass stronger and more transparent. In the production of ceramics, borax is also an important thing, which can change the firing temperature of ceramics, make ceramics more colorful and denser.
In the process of medicine, borax is also effective. It can disinfect and sterilize, and treat sore throats and other diseases. However, its dosage needs to be careful, too much is harmful.
The physical and chemical properties of borax make it indispensable in many industries, used in the world, and benefit the people.

"Tiangong Kaiwu" says: "The principle of everything has its own properties. The firmness and brittleness of sex is related to the use." To understand this question, when it comes to the properties of substances.
"2 - (4 - calcium phosphate cornerstone group) ", this expression may involve changes in chemical composition. If the calcium phosphate cornerstone group is a specific mineral combination, its participation in the reaction will change according to its chemical properties. Subtracting this substance may change the chemical composition and structure of the system, affecting the overall properties.
As for "1.3 - Boro imidazoline chemical properties are stable or not", boro imidazoline compounds, their chemical stability is closely related to the structure. Boron atoms are electron-deficient, which can affect the distribution of molecular electron clouds. The structure of the imidazoline ring is relatively stable, but if the surrounding substituents of the boron atom are different, the stability is also different. If the substituent has an electron-absorbing effect, or the electron cloud density of the boron atom is reduced, its reactivity is enhanced, and the stability is slightly reduced; if it is an electron-supplying substituent, it can increase the electron cloud density of the boron atom and enhance the molecular stability. At the same time, if boron imidazoline forms intramolecular or intermolecular hydrogen bonds, it also affects the stability. Generally speaking, under common conditions, if there is no extreme environment such as strong oxidizing agent and strong acid and base, boron imidazoline can maintain a certain chemical stability. However, under special reaction conditions, its structure may also change.

"Tiangong Kaiwu" said: To prepare 2 - (4 - borosilicate calcium barium ore) - 1.3 - naphthalene anthraquinone, there are many ways to synthesize it.
First, the condensation reaction of organic chemistry can be used. Select suitable raw materials containing borosilicate calcium barium groups and compounds with naphthalene and anthraquinone rudiments, and under specific reaction conditions, catalyze with acid-base or metal catalysts to promote the condensation of the two. For example, using strong acids as catalysts, in a heated reflux environment, nucleophilic substitution or electrophilic addition occurs between the two molecules, so that the borosilicate calcium barium group is connected to the naphthalene and anthraquinone parent, and then the target product is obtained.
Second, the stepwise construction method is adopted. First, the intermediate containing part of naphthalene and anthraquinone structure is prepared according to the organic synthesis steps, and the related structural fragments containing borosilicate barium ore are prepared by an appropriate method. Then, by means of coupling reaction, the two are connected. This process requires precise control of the reaction conditions and the purity of the intermediate. For example, during the coupling reaction, the reaction temperature, solvent and catalyst types and dosages are strictly required to obtain high purity 2 - (4 - borosilicate barium ore) -1.3 - naphthalene and anthraquinone.
Third, the biosynthetic route can be considered. Screening microorganisms or enzymes with specific catalytic ability, using substrates containing related elements and structural units as raw materials, and using enzymatic reactions in organisms, the synthesis of 2- (4-borosilicate limestone) -1.3-naphthalene and anthraquinone can be achieved gently and efficiently. However, this approach requires in-depth study of the metabolic mechanism of microorganisms and the catalytic characteristics of enzymes to optimize the synthesis conditions and improve the yield of products.

There is a question today, what is the price range of di- (tetra-phosphorus calcium-based) -tricyanonaphthalaldehyde in the market?
Guanfu's "Tiangong Kaiwu", in which the system and price of various products are recorded in detail. However, today's question about "di- (tetra-phosphorus calcium-based) -tricyanonaphthalaldehyde", its product or extraordinary common thing, the book may not directly record its price.
If you want to find the market price of tricyanonaphthalaldehyde, it should be based on the chemical market in today's world. Its price often varies depending on quality, origin, supply and demand conditions. In the market, those with better quality may be slightly higher in price; ordinary products may be slightly lower in price. And the origin is different, the freight and other costs are also different, resulting in different prices. If the supply and demand are tight, the price may increase; if the supply is abundant and the demand is thin, the price may decrease.
As for "two minus (four minus phosphorus calcium base) one", this may be a chemical formula, but it is not clear what it means exactly, and it is difficult to say its relationship with the price.
Basically speaking, if you want to know the exact price of tricyanonaphthaldehyde, you should consult the merchants of chemical materials and the platforms of chemical transactions to obtain a real-time and accurate price range.