5-Alkane-2-enheptanedioic acid is an organic compound. Although it is not detailed in ancient books, it has a wide range of uses in today's scientific view.
In the field of organic synthesis, this compound is of great significance. Its special structure containing double bonds and carboxyl groups makes it a key building block for the construction of complex organic molecules. Chemists can convert 5-alkane-2-enheptanedioic acid into various organic compounds with specific functions through ingenious chemical reactions, such as the addition reaction of olefins and the esterification reaction of carboxyl groups. For example, by esterification with alcohols, corresponding ester compounds can be formed. Such esters may have a unique aroma and can be used in the fragrance industry to add a unique fragrance to many perfumes and flavors.
In the field of materials science, 5-alkane-2-enheptanedioic acid also has potential applications. After appropriate polymerization, it can be co-polymerized with other monomers to form polymer materials. Due to the presence of unsaturated double bonds in its structure, the formed polymer materials may have special physical and chemical properties, such as good flexibility and corrosion resistance. These polymer materials may be used in the manufacture of special-purpose plastic products, coatings, etc., to meet the strict requirements of material properties in different fields.
Furthermore, in the study of medicinal chemistry, 5-alkane-2-enheptanedioic acid may play an important role. Its structure may be similar to some biologically active molecules, and through structural modification and modification, drug molecules with specific pharmacological activities may be developed. Researchers can design and synthesize drugs based on their structural characteristics to explore their potential in the treatment of diseases, such as the development of therapeutic drugs for certain diseases such as inflammation and tumors.

5-% -2-deuterium acetic acid, is a kind of chemical compound. Its physical properties are as follows:
- ** External odor **: Under normal conditions, 5-% -2-deuterium acetic acid is a transparent liquid, which is uniform to the ground, clear and transparent, and its transparency can be recognized by the eye. This type of acid is generally similar to low molecular weight acid. In normal environments or industrial environments, it is similar to external odor.
- ** Taste **: It has an irritating taste and can smell its strong sour taste. This taste is similar to ordinary acetic acid, but it may be slightly inferior in senses due to the substitution of deuterium atoms in it. Its irritating smell can cause a certain impact on people's respiratory system and senses. For example, inhalation can cause nasal cavity and throat irritation, so the operation needs to be in a good environment.
- ** Melting temperature **: Melting temperature is 16.6 ° C, and the temperature is reduced to less than 100%. 5-% -2-deuterium acetic acid is solidified by liquid to form a crystalline substance. Boiling temperature is 117.9 ° C. If it is added to a low temperature, it will produce a boiling image and be melted by liquid. The characteristics of this melting temperature are similar to that of acetic acid. Due to the limited influence force of deuterium atoms and molecules, the melting temperature of acetic acid is similar to that of liquid.
- ** Solubility **: Easily soluble in water, ethanol, ether, etc. In water, it can form water molecules, so it can be miscible in any ratio. This property makes it important for the transformation and analysis of aqueous solutions. It can also be well dissolved in ethanol, ether, etc., so that it can be used as a solution or reverse medium in the fields of synthesis, extraction, etc.
- ** Density **: The density is slightly higher than that of water, which is 1.05 g/cm ³. When mixed with water, it sinks due to density difference. This density characteristic can be used for important identification and operation tests in liquid-liquid separation, density determination, etc., or industrial processes.

5-Bromo-2-pentanoic acid is an organic compound with unique chemical properties. Its structure contains bromine atoms, alkynyl groups and carboxyl groups, which endow it with various chemical activities.
First, its alkynyl group is unsaturated and can undergo an addition reaction. In case of electrophilic reagents, such as hydrogen halide, the π electron cloud of the alkynyl group can attract electrophilic reagents to form halogenated olefin intermediates, which are then added to hydrogen halide to obtain dihalogenated alkane products. Or with hydrogen under the action of a suitable catalyst, such as Lindela catalyst, a partial hydrogenation reaction occurs to form cis-olefins. And alkynyl groups can participate in metal catalytic coupling reactions, such as the formation of carbon-carbon bonds with metal-containing organic reagents under the catalysis of palladium, copper and other catalysts, which are used to construct complex organic molecular structures.
Looking at the bromine atom, the bromine atom acts as a halogen atom and can undergo nucleophilic substitution reaction. Due to its electronegativity difference, the carbon-bromine bond has a certain polarity. Nucleophilic reagents such as sodium alcohol and amines can attack the carbon atom connected to the bromine, and the bromine atom leaves with a pair of electrons to form new substitution products. This reaction is often used to introduce different functional groups in organic synthesis.
The properties of carboxyl groups are also important. Carboxyl groups are acidic and can partially ionize hydrogen ions in water. Their acidity is stronger than that of carbonic acid, and they can neutralize with bases to form carboxylic salts and water. It can also be esterified with alcohols under the catalysis of concentrated sulfuric acid to form esters. This reaction is one of the important methods for preparing esters.
5-Bromo-2-pentyne acid has various chemical properties such as addition, nucleophilic substitution, acid-base neutralization, and esterification due to the three key functional groups it contains. It is widely used in the field of organic synthesis and can be used to prepare many organic compounds such as medicine, pesticides, and materials.

In order to obtain ethyl pentacarbondibromoacetate, the following method can be used.
Prepare an appropriate amount of sodium metal, carefully cut small pieces, remove the oxide layer on the surface, and then place it in a reaction bottle containing an appropriate amount of absolute ethanol. In this process, the sodium and ethanol slowly react and gradually dissolve into it to form a sodium ethanol solution. This step needs to be done in a well-ventilated place and away from fire sources to prevent accidents.
Take another reaction vessel, put an appropriate amount of ethyl acetoacetate, and then slowly drop the prepared sodium ethanol solution into it. Add it slowly, and stir continuously at the same time to make the two fully mix and react. At this time, the chemical reaction in the solution occurs quietly, and many ions interact, laying the foundation for the subsequent reaction.
After the above reaction is stable, bromine and carbon tetrachloride are mixed in appropriate proportions to prepare a uniform solution. This solution is placed in a drop funnel and added dropwise to the aforementioned reaction system. When adding dropwise, close attention should be paid to the reaction phenomenon. If the reaction is too violent, the dropwise rate can be slightly slowed. Due to the strong oxidizing and corrosive properties of bromine, the operation must be cautious, and protective equipment should be worn to avoid contact with it.
Add it and continue to stir to make the reaction fully proceed. After the reaction is completed, the reaction mixture is poured into an appropriate amount of ice water. At this time, the product and impurities are initially separated due to different solubility in the water. Use a separation funnel to carefully separate the liquid to obtain the organic phase.
The organic phase is dried with an appropriate amount of anhydrous magnesium sulfate and left to stand for a while to remove the moisture. Then, by distillation, under suitable temperature and pressure conditions, a fraction with a specific boiling point range is collected. This fraction is ethyl pentacarbondibromoacetate. During distillation, precise temperature control is required to ensure the purity of the product.
The whole process, the reaction conditions at each step need to be precisely controlled, the proportion of materials should also be appropriate, and the operation should be more rigorous and meticulous, so that a purer ethyl pentacarbondibromoacetate can be prepared.

I haven't heard of the price of "5-alkane-2-enheptanoic acid" in the market. If you want to know its price, you should think about all the reasons.
First, the preparation of this material is difficult and easy. If the preparation requires complicated methods and rare materials, the price must be high; if the preparation method is simple and the materials used are ordinary, the price may be low.
Second, the price of raw materials. If the raw material is rare and the price is high, the price of this "5-alkane-2-enheptanoic acid" will also be expensive because of it; if the raw material is common and easy to obtain, the price of the product will also be affected by it and become more affordable.
Third, the amount of demand. If there is strong demand for this product in a certain industry, the supply is in short supply, and the price must rise; if there is little demand and the supply exceeds the demand, the price may fall.
Fourth, market competition. If there are many people who own this product, the competition is fierce, and the price may be reduced in order to occupy the market; if there is only one company, and there is no semicolon, the pricing power is in its hands, and the price may be high.
Fifth, policies and regulations, transportation and storage fees are also related to the price. If there are strict regulations, the cost will increase, and the price will also rise; if the transportation is far away, the storage is difficult, and the cost is high, the price will also rise.
Because the preparation, raw materials, demand, competition and policy transportation of this "5-alkane-2-enheptanoic acid" are not detailed, it is difficult to determine the range of its market price. It is necessary to consider all things in detail to obtain a more accurate price range.