This is a compound of 4-fluoro - α -（ 1-methylethyl) phenylacetic acid ((α S) -). To clarify its chemical structure, let me explain in detail.
This compound is based on phenylacetic acid. Above the benzene ring, a fluorine atom is added at the para-position of the carbon atom connected to the carboxymethyl group, that is, at position 4. Furthermore, at the α-position of the carboxymethyl group connected to the benzene ring, there is an isopropyl group, that is, 1-methylethyl. And the configuration of the carbon atom at this α-position is of type (S), which indicates that its spatial orientation follows specific rules and is of great significance in stereochemistry.
Its structure is described as follows: With the benzene ring as the core, it is like a stable pavilion. The No. 4 position on the benzene ring extends a "branch" of a fluorine atom, and the carboxymethyl group on one side is attached like a "vine", and the α position of the "vine" leads to a "branch" of an isopropyl group, just like the delicate structure of nature. Because the carbon atom configuration of the α position is of the (S) type, it has a unique spatial structure, which makes the whole molecule exhibit unique properties in chemical reactions. In this way, the chemical structure of this compound is outlined.

"Phenylacetic acid, 4-fluoro - α -（ 1-methylethyl) -, (Alphas) -" This substance has unique uses in many fields.
In the field of medicine, it is often the key raw material for the synthesis of specific drugs. Because of its unique chemical structure, it can participate in the construction of many drug molecules and help synthesize compounds with specific physiological activities to achieve the purpose of treating diseases.
In the chemical industry, it can act as an important intermediate for organic synthesis. With the help of a series of chemical reactions, a variety of functional materials or fine chemicals can be further derived, such as some high-performance coatings, plastic additives, etc., which play an important role in improving the performance of chemical products.
In scientific research and exploration, it is an important object of chemical research. Scientists promote the development of organic chemistry theory through in-depth exploration of its reaction characteristics and chemical properties, providing a key basis for the development of new synthesis methods and routes, so as to expand the cognitive boundaries of chemical science and help the birth of more innovative chemical achievements.

I think what you are asking is about the market price range of " (S) -4-fluoro-α-isopropylphenylacetic acid". However, the market price of this compound is difficult to determine, because many factors interact.
First, the price fluctuation of raw materials has a great impact on its selling price. If the price of benzene, fluoride and other raw materials required for the synthesis of this compound rises, the price of finished products will also rise; conversely, the price of raw materials falls, and the price of finished products may have room to decline.
Second, the difficulty and cost of the production process are also key factors. If the preparation process is complicated, high-end equipment and fine operation are required, and the energy consumption is quite large, the cost will increase, and the price will also rise; if the process is simple and efficient, and the cost is controllable, the price may be more accessible to the people.
Third, the market supply and demand relationship determines the direction of the price. If the market demand for this compound is strong, but the supply is limited, the price must be high; if the supply is sufficient and the demand is weak, the price may decline.
Fourth, the purity and Quality Standards of the product also affect the price. Products with high purity and strict Quality Standards are often priced higher than those of ordinary quality.
In summary, the market price range of " (S) -4-fluoro-α-isopropylphenylacetic acid" may be subject to large fluctuations due to the above factors, and it is difficult to generalize the exact price range.

Phenylacetic acid, 4-fluoro - α -（ 1-methylethyl ） - ，（α S) - There are many precautions for this product in the production process. Let's listen to the details below.
First, the control of the material is the key. The purity of the starting material is directly related to the quality of the product. When purchasing the material, be sure to carefully check the quality certificate and check it many times to ensure that the purity is up to standard. If the purity of the material is insufficient, impurities are in the reaction or cause side reactions, resulting in a decrease in the purity of the product, and subsequent separation and purification will be difficult.
Second, the precise regulation of the reaction conditions is indispensable. Temperature, pressure, reaction time and catalyst dosage all have a profound impact on the reaction process and product yield. This reaction may be extremely sensitive to temperature, with a slightly higher temperature, or the reaction rate may be too fast, generating too many by-products; if the temperature is slightly lower, the reaction will be slow and the yield will not meet expectations. Therefore, it is necessary to borrow high-precision temperature control equipment to strictly maintain the reaction temperature in a suitable range. Pressure cannot be ignored. Improper pressure or deviation from the reaction direction will affect the structure and purity of the product.
Third, the cleaning and maintenance of the reaction equipment should not be slack. Unclean the inner wall of the equipment or residual old reactants become a source of impurities in the new reaction, interfering with the normal progress of the reaction. Regularly clean and inspect the equipment to ensure that there are no material residues and equipment hidden dangers, so as to ensure a stable and efficient reaction.
Fourth, the operation of personnel must be standardized. Operators must undergo professional training and be familiar with the reaction principle, process and emergency response. Illegal operations such as wrong feeding sequence, improper stirring speed, etc., may cause serious consequences, resulting in product quality degradation, and even endanger production safety.
Fifth, product separation and purification also need to be treated with caution. After the reaction, the product is often mixed with impurities. According to the characteristics of the product and impurities, a suitable separation method should be selected, such as crystallization, extraction, chromatographic separation, etc. The operation process should pay attention to the optimization of conditions to ensure effective removal of impurities and obtain high-purity products.

This "phenylacetic acid, 4-fluoro - α -（ 1-methylethyl ） - ，（α S) -" is a method of hiding, which is related to its properties. The properties of this substance may affect its storage.
View its chemistry, or be sensitive to temperature, humidity, light, and gas. If it is afraid of heat, it should be placed in a cool place to prevent heat from changing its properties and causing mass damage. A cool place should cover a room below 20 degrees Celsius. If it is a cellar or the like, its temperature is constant and low, suitable for storing this thing.
If it is afraid of moisture, it must choose a dry place. The dry ground can prevent moisture from invading, preventing it from deliquescence or responding to water. If lime is placed on the side of the container, it absorbs the surrounding moisture and protects the dryness of the object.
Light may also be a problem. If this object is photosensitive, it should be hidden in the dark. It can be placed in a box. The box is made of light-shielding materials, such as wooden boxes and thick cartons, to prevent light from entering the room.
Gas also needs to be considered. If it is easy to react with various gases in the air, it should be sealed and hidden. Hold it in glassware, plug its mouth tightly, or wrap it in plastic to isolate the outside air and protect its purity.
To hide this thing, you need to pay attention to its nature, choose a cool, dry, dark and gas-proof place, and hide it well according to its nature, so that its quality can be kept unchanged for future use.