The Chinese name of this substance is 4-amino - α -（ 4-fluorophenyl) -phenylacetonitrile monohydrochloride (9Ci), and its chemical structure is as follows:
First, the main body of the compound is the phenylacetonitrile structure. Phenylacetonitrile is a benzene ring connected to an acetonitrile group ($- CH_2CN $). On this basis, the α position (the methylene carbon atom connected to the benzene ring) is connected to a 4-fluorophenyl group, that is, the 4 position of the benzene ring is replaced by a fluorine atom and then connected to the α position carbon atom. In addition, an amino group ($- NH_2 $) is attached at the amino position (i.e. the 4th position of the benzene ring attached to the carbon atom at the alpha position).
and "monohydrochloride" means that the amino group ($- NH_2 $) in the compound reacts with a molecule of hydrogen chloride ($HCl $) to form an ammonium salt structure ($- NH_3 ^ + Cl ^ - $ ） 。 This structure changes some physical and chemical properties of the original compound, for example in terms of solubility, the solubility in water is often enhanced after the formation of hydrochloride. Overall, this chemical structure confers unique chemical and physical properties on the substance, which may have specific uses in fields such as organic synthesis and medicinal chemistry.

4-Amino - α -（ 4-fluorophenyl) phenylacetonitrile monohydrochloride (9Ci), this substance has a wide range of uses. In the field of medicinal chemistry, it is often a key intermediate for the synthesis of specific drugs. Due to its unique chemical structure, it can precisely combine with specific targets in organisms, helping to develop drugs with high selectivity and strong activity. It is of great significance in the creation of anti-tumor, anti-infection and neurological disease therapies.
In the field of organic synthesis, it is an important cornerstone for the construction of complex organic molecular structures. With its amino, cyano and other reactive groups, a wide variety of organic compounds can be derived through many organic reactions, such as nucleophilic substitution, addition reactions, etc., greatly enriching the library of organic compounds and expanding the broad space for organic synthetic chemistry research.
has also made its mark in the field of materials science. It can be introduced into polymer materials through specific chemical reactions, endowing materials with special optical, electrical or biological properties, opening up new avenues for the research and development of new functional materials, such as optoelectronic materials, biomedical materials, etc. All have potential application value.
From this perspective, 4-amino - α -（ 4-fluorophenyl) phenylacetonitrile monohydrochloride (9Ci) plays an indispensable role in many scientific fields due to its various uses, and is of great significance to promoting scientific and technological progress in related fields.

Preparation of 4-amino - α -（ 4-fluorophenyl) -phenylacetonitrile monohydrochloride (9Ci), in the production process, there are a number of precautions, and listen to me one by one.
The first thing to pay attention to is the quality of the material. The raw material must be pure, and the reaction of impurities is difficult to achieve expectations, or the product is impure. For example, 4-fluorophenyl related materials, the purity is insufficient, or there are miscellaneous side reactions during the reaction, which affects the yield and quality of the product. When purchasing, when the qualification of suppliers is carefully checked, the raw materials must also be strictly tested when entering the factory to ensure that they meet the production standards.
The control of reaction conditions is the key. Temperature, pressure, reaction time, etc., are all about success or failure. This reaction is sensitive to temperature. If the temperature is too high, or the reaction is overstimulated, the product will decompose or produce impurities; if the temperature is too low, the reaction will be slow and time-consuming. The same is true for pressure. Improper pressure or change the chemical balance will affect the formation of the product. Therefore, precise temperature and pressure control are required during production. According to the reaction process, precise instruments are used to monitor and control the regulation. Operate according to the established process parameters and must not be changed without authorization.
Furthermore, the choice of reaction solvent cannot be ignored. The solvent not only provides a medium for the reaction, but also affects the reaction rate and selectivity. The choice of solvent needs to consider its compatibility with the reactants and products, and its catalytic or inhibitory effect on the reaction. If the solvent and reactants have poor mutual solubility, the reaction may be difficult to carry out fully. And the recovery and treatment of solvents is also related to cost and environmental protection. Solvents that are easy to recycle and environmentally friendly should be selected.
Safe production is also a top priority. The production process of this compound may involve toxic, harmful, flammable and explosive materials. When operating, strictly abide by safety regulations and wear protective equipment, such as gas masks, protective gloves, etc. The workshop needs to have good ventilation, fire and explosion-proof facilities, regular security inspections to eliminate hidden dangers and prevent accidents before they occur.
Post-treatment process is related to the purity and quality of the product. After the reaction, the separation and purification of the product need fine operation. Common purification methods such as crystallization, extraction, column chromatography, etc., should be selected according to the characteristics of the product. During crystallization, factors such as solvent selection and cooling rate all affect the crystal morphology and purity; during extraction, the choice and dosage of extractant determine the extraction effect of the product. Careful and meticulous operation is required to meet qualified product standards.

I see what you are asking about the market price range of 4 - Amino - Alpha - (4 - Fluorophenyl) - Benzeneacetonitrile, Monohydrochloride (9Ci) products. However, as far as I know, it is difficult to determine the price.
covers the market price, which is often affected by various factors. First, the purity of the material is important. If the purity is very high and there are few impurities, the price will be high; if the purity is slightly lower, the price may drop. Second, the supply and demand situation is also critical. If the demand for this product is strong and the supply is scarce, the price will rise; if the supply exceeds the demand, the price will fall. Third, the cost of production has a great impact. The price of raw materials, the production process, and the consumption of manpower are all related to cost. If the cost is high, the price will be high, and if the cost is low, the price will be low. Fourth, regional differences cannot be ignored. Different places may have different prices due to taxation, transportation, etc.
Because the specific purity of this product, the region where it is located, and the current supply and demand status and cost geometry are not detailed, it is difficult to determine its market price range. To know its exact price, you can consult the supplier, distributor of chemical materials, or check it on the relevant trading platform to obtain more accurate price information.

4 - Amino - Alpha - (4 - Fluorophenyl) - Benzeneacetonitrile, Monohydrochloride (9Ci) is a special chemical substance. The storage conditions of this substance are very critical, related to its stability and quality.
It should be stored in a cool and dry place, away from heat sources and open flames. Due to the heat or exposure to open flames, or chemical reactions caused by the substance, its chemical properties will be damaged.
and should be stored in a well-ventilated place to prevent the accumulation of harmful gases. If the storage environment is poorly ventilated, or due to the evaporation of substances, harmful gases will be produced, endangering the surrounding environment and personnel safety.
Furthermore, it needs to be stored separately from oxidants, acids, alkalis and other substances. Due to its active chemical properties, contact with the above substances may cause violent reactions or even explosions.
When storing, also ensure that the packaging is well sealed. If the packaging is damaged, air, moisture, etc. can invade, causing the substance to be damp or react with components in the air, affecting the quality.
In short, the storage of 4 - Amino - Alpha - (4 - Fluorophenyl) - Benzeneacetonitrile, Monohydrochloride (9Ci) must follow the principles of cool, dry, well-ventilated, isolated storage, and sealed packaging in order to effectively maintain its chemical properties and quality.