7-Amino-1,3,6-naphthalenetrisulfonic acid(CAS: 118-03-6)

7-Amino-1,3,6-naphthalenetrisulfonic acid (CAS: 118-03-6) is a crystalline compound with a molecular weight of approximately 324.17 g/mol. It has a high solubility in water, with a solubility of about 125 g/100 mL at 20°C. The compound exhibits basic properties and is not highly reactive under normal conditions. It is soluble in strong acids and undergoes minimal chemical changes in neutral and basic media.

7-Amino-1,3,6-naphthalenetrisulfonic acid (CAS: 118-03-6) is typically synthesized through a multi-step process involving the sulfonation of naphthalene, followed by the amination of one of the sulfonic acid groups. Commonly, the sulfonation is performed using concentrated sulfuric acid, and the amination step involves the use of aniline or another amine under mild conditions. The overall yield is around 80-90% depending on the purity of the starting materials and the reaction conditions.

7-Amino-1,3,6-naphthalenetrisulfonic acid (CAS: 118-03-6) finds applications in various industries. It is used in the pharmaceutical industry for the synthesis of certain dyes and pigments due to its chromogenic properties. In the semiconductor industry, it serves as a precursor for the production of naphthalene-based compounds. Additionally, it has applications in the polymer industry as a colorant and in the development of sensors for detecting various analytes.

When handling 7-Amino-1,3,6-naphthalenetrisulfonic acid (CAS: 118-03-6), it is crucial to wear appropriate personal protective equipment (PPE), including gloves, goggles, and a lab coat. The compound should be stored in a well-ventilated area and away from strong oxidizers and acids. In the event of a spill, the area should be cleaned up immediately with water and appropriate absorbents. The material safety data sheet (MSDS) should always be consulted for detailed safety information and emergency procedures. Handling should be conducted in a fume hood to prevent inhalation exposure.