Porphyrin Systems GbR is a company engaged in synthesis and investigation of porphyrins and related compounds. The company was founded in January 1999 in Lübeck, Germany. Research at Porphyrin Systems is focused on the development of new porphyrinic photosensitizers for photodynamic therapy of cancer (PDT). In this field, the company cooperates with the Medical Laser Center Lübeck GmbH and with partners at other German and European institutes and universities. Furthermore, the company is interested in any application of porphyrinic compounds in science and technology. Besides this research topic, Porphyrin Systems is developing new cost-efficient synthetic routes to all kinds of porphyrinic compounds. We look forward to support our customers in innovative research regarding porphyrin chemistry.Porphyrin Systems is able to manufacture large amounts of various porphyrins for research and industrial application. Apart from simple porphyrins like tetraphenylporphyrin and metal complexes of TPP, we offer now functionalized porphyrins and lipophilic porphyrins. Furthermore, we offer pyrroles that are interesting starting compounds for porphyrin synthesis. Aminolevulinic acid esters will complete our compound collection. We are also able to synthesize porphyrins and other organic compounds on request for our customers. Our service includes spectroscopic and electrochemical measurements.