2-Aminothranilic Acid-5-Sulfonic Acid

2-Amino-phthalic acid-5-sulfonic acid, which is a particularly important chemical substance, is widely used in many fields.
First, in the dye industry, its position is pivotal. It can be used as a key intermediate in the synthesis of many dyes. Through specific chemical reactions, it can be cleverly combined with other compounds to construct dye molecules with different structures and colorful colors. The dyes synthesized in this way often have excellent dyeing properties, such as high color fastness and bright color, which make them useful in textile printing and dyeing and other related industries, giving long-lasting and brilliant colors to fabrics.
Second, in the field of medicine, it is also of considerable value. Due to its unique chemical structure, it can be used as a starting material or key intermediate for the synthesis of certain drugs. With the modification and modification of its structure, scientists are expected to develop new drugs with specific pharmacological activities and contribute to human health. For example, in the development of drugs for specific diseases, it may serve as an important cornerstone for the construction of drug molecules with targeted therapeutic effects.
Third, in the field of organic synthesis chemistry, 2-aminophthalic acid-5-sulfonic acid is often used as an important building block for organic synthesis. Organic chemists can use the amino group, sulfonic acid group and benzene ring structure and other activity checking points to construct more complex and diverse organic compounds through various organic reactions, such as substitution reactions, condensation reactions, etc., to expand the boundaries of organic synthesis, providing rich possibilities for the creation of new materials and new compounds.

2-Amino-phthalic acid-5-sulfonic acid is one of the organic compounds. Its physical properties are quite important and are related to many practical applications.
This compound is mostly in solid form at room temperature, and its appearance is usually white or white powder-like substance. It has a fine texture and a uniform touch. Its color is pure, reflecting high purity. If it contains impurities, the color may change.
In terms of solubility, it has limited solubility in water, and its insoluble state makes the interaction between water molecules and the compound molecules weak. This property is of great significance in the separation and purification process. However, in certain organic solvents, such as some polar organic solvents, it exhibits a certain solubility, which provides the possibility for its application in organic synthesis and solution systems.
Its melting point is also a key physical property. After precise determination, there is a specific melting point range. At this temperature, the lattice structure of the compound disintegrates and changes from solid to liquid. This temperature has a profound impact on the thermal stability and processing applications of the compound.
Furthermore, in terms of density, it has its own specific value, indicating that the quality of the substance contained in the unit volume is of great significance to the proportion of materials in chemical production and process control.
In addition, 2-aminophthalic acid-5-sulfonic acid powder has a certain fluidity, although it is not as smooth as some granular substances, it can move relatively smoothly in the container under suitable conditions. This fluidity is very important for material transportation and mixing operations.
It can be seen from the above that these physical properties of 2-aminophthalic acid-5-sulfonic acid are interrelated and jointly affect their applications in chemical, pharmaceutical, materials and other fields.

2-Amino-5-sulfobenzoic acid is an important member of organic compounds. Its chemical properties are unique and it has outstanding performance in many fields.
First of all, its acidity. The presence of sulfonic acid groups and carboxyl groups endows the compound with significant acidity. The sulfonic acid group is a strong acidic group, which is easy to dissociate hydrogen ions in aqueous solution, and the carboxyl group can also be partially ionized. The synergistic effect of the two makes it quite acidic. This acidic property makes it able to act as an acid in some acid-base reactions, neutralize with bases, and generate corresponding salts and water.
In addition, its amino properties are also worthy of attention. Amino groups are alkaline and can react with acids to form salts. The amino group in 2-amino-5-sulfobenzoic acid is slightly different from the simple amino group due to the influence of surrounding groups. However, it can still participate in reactions such as binding to protons, showing its basic characteristics.
In addition, the benzene ring structure contained in the compound endows it with certain stability and conjugation effect. The conjugate system of the benzene ring can delocalize the electron cloud on the entire benzene ring, which not only affects the physical properties of the compound, such as melting point, boiling point, etc., but also affects its chemical activity. The substituents on the benzene ring interact with each other, and the sulfonic acid group, carboxyl group and amino group all affect the distribution of the electron cloud density of the benzene ring, which in turn affects the location and difficulty of further substitution reactions on the benzene ring.
At the same time, the groups in 2-amino-5-sulfobenzoic acid will interact with each other. The strong electron absorption between the sulfonic acid group and the carboxyl group may reduce the electron cloud density on the amino group, affecting the alkalinity of the amino group; conversely, the amino group may also have a certain effect on the acidity of the sulfonic acid group and the carboxyl group. This interaction between groups makes the chemical properties of the compound rich and variable, and has unique application potential in the fields of organic synthesis, medicinal chemistry, etc. It provides an interesting research object for chemists to explore new reaction and functional materials.

The preparation of 2-amino-5-sulfobenzoic acid has been a subject of research in the field of chemical preparation for centuries. Its preparation method is often based on the route of chemical synthesis.
In the past, the common method for preparing this compound was obtained by using a specific starting material and going through several chemical reaction steps. One method is often to start with a compound containing a benzene ring. The sulfonic acid group is introduced at a specific position in the benzene ring first, and this step is mostly achieved by a sulfonation reaction. In the sulfonation reaction, a suitable sulfonating agent, such as concentrated sulfuric acid or fuming sulfuric acid, is selected. Under suitable temperature and reaction conditions, the benzene ring undergoes an electrophilic substitution reaction, thereby introducing a sulfonic acid group.
Then, an amino group is introduced at another position in the benzene ring. The method of introducing amino groups is often replaced by nitro groups and then reduced. First, nitrifying reagents, such as mixed acids of concentrated nitric acid and concentrated sulfuric acid, nitrate the benzene ring to form nitro compounds. Then, the nitro group is reduced to amino groups by reduction methods, such as metal and acid (such as iron and hydrochloric acid) or catalytic hydrogenation, to obtain 2-amino-5-sulfonic acid benzoic acid. During the preparation process of
, the control of the conditions of each step of the reaction is extremely critical. Factors such as temperature, reaction time, and the proportion of reactants will all affect the yield of the reaction and the purity of the product. Too high or too low temperature may cause side reactions to occur, or the reaction rate may be too slow to achieve the desired effect. Therefore, it is necessary to carefully adjust the reaction conditions to achieve the optimal preparation effect.
There are other synthesis paths that can be explored, but the above methods are more commonly used. Chemical preparation methods often evolve with the progress of science and technology, and more efficient and green preparation processes may be developed in the future.

The price of 2-aminobenzoic acid-5-sulfonic acid in the market is difficult to determine. The price of the cover often changes due to various reasons, such as the supply and demand of the market, the cost of production, the quality of the quality, and the time.
Looking at the price of chemical products in the past, the supply and demand conditions have a huge impact on the price. If the market demand is strong, and the supply quantity is small, the price may rise; if the demand is small and the supply is large, the price may fall. The cost of production is also a major factor. The price of raw materials, the cost of labor, and the cost of transportation can all cause changes in costs, thus affecting their prices. And those with good quality often have higher prices than ordinary products.
And the chemical market changes over time. In the past, there were chemical raw materials, but due to unexpected circumstances, such as natural disasters and geographical reasons, the price fluctuated greatly. Although there is no historical record of the confirmed price of 2-aminobenzoic acid-5-sulfonic acid, the price of similar chemicals may be between thousands and tens of thousands of gold per ton. However, this is only a guess. If you want to know the exact price, you must consult merchants and manufacturers in various cities, or watch the latest market information, in order to get the current appropriate price.