Understanding the fundamental structure and properties of chemical compounds is essential for their effective utilization in research and industry. 5-(4-Aminophenyl)-10,15,20-triphenyl porphine (TPP-p-NH2-PH2), identified by its CAS number 67605-64-5, is a fascinating molecule with a well-defined structure that dictates its diverse applications. As a prominent member of the porphyrin family, its chemical characteristics make it a valuable asset for organic synthesis and material science. The molecular formula of TPP-p-NH2-PH2 is C44H31N5, with a molecular weight of approximately 629.75 g/mol. The core of the molecule is the porphyrin ring, a macrocyclic structure consisting of four pyrrole rings linked by methine bridges. This extensive conjugated pi system is responsible for the compound's characteristic absorption and emission spectra, often appearing as intensely colored solids. In the case of TPP-p-NH2-PH2, the substitution pattern includes three phenyl groups and one aminophenyl group attached to the meso positions of the porphyrin ring. The phenyl groups contribute to the molecule's stability and solubility in organic solvents, while the strategically placed amino group (-NH2) on one of the phenyl rings provides a key reactive site for further chemical modifications. This amino functionality is critical for its role as an organic synthesis intermediate. The physical appearance of TPP-p-NH2-PH2 is typically described as a solid, often in crystalline or powdered form, with colors ranging from purple to reddish-brown, depending on its purity and morphology. High-purity grades, often exceeding 97%, are readily available from specialized manufacturers, ensuring reliable performance in sensitive applications. These high-purity materials are crucial for ensuring the accuracy and reproducibility of research results, whether in academic laboratories or industrial R&D settings. The ability to buy these compounds with guaranteed specifications is a testament to advancements in chemical manufacturing. The stability and storage conditions for TPP-p-NH2-PH2 generally recommend keeping it in a cool, dry place, protected from light, and in a tightly closed container to maintain its integrity. This careful handling ensures that the molecule retains its reactive potential for use in complex synthetic pathways. As a foundational compound in various research fields, understanding its structural nuances and chemical properties is paramount for unlocking its full potential and for making informed decisions about purchasing and application.