ISOCS-31

31st International Symposium
on the 
Organic Chemistry of Sulfur

June 29 - July 3, 2026
Jan Długosz University in Częstochowa, POLAND

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Invitation to ISOCS-31

      We take great pleasure in inviting you to participate in the 31st International Symposium on the Chemistry of Sulfur (ISOCS-31), which will be held at the Jan Długosz University in Częstochowa, Poland, from June 29 to July 3, 2026. We are very excited to cordially welcome all of you to Czestochowa for the second time, after 14 years which have passed since the ISOCS-25, to participate in the subsequent meeting which has a 60 years long tradition. It started with the first Symposium held in 1964 in Liblice (former Czechoslovakia) organized by Professor V. Horak. Since then, the next meetings have been organized all over the world. Our 31st Symposium can be considered to be a milestone and an anniversary event. As during previous ISOCS meetings, diverse aspects of sulfur chemistry will be represented. We are happy to announce 18 prominent chemists (selected based on suggestions from IAB of ISOCS-31) who have already agreed to present plenary and invited lectures at the Symposium. We believe that their lectures enriched by your attendance and presentation of your own achievements will be vital to the success of the Symposium. We are also very honored that three former chairs of ISOCS and participants of a number earlier meetings, Professors Marin Mikolajczyk, Charles Stirling and Bine Zwanenburg, accepted our invitation to serve as Honorary Chairmen of ISOCS-31.

     Częstochowa, with its 203.615 (2024) inhabitants, is the thirteenth largest city in Poland, the second largest city in the Silesian Voivodeship, and is located in the northern part of the Silesia region. It is surrounded by picturesque rocky Jurassic hills that are part of the Cracow-Częstochowa Upland, the region that is known for a chain of medieval castles called the “Trail of Eagle Nests”. Częstochowa is a city of long cultural and national tradition – its origins reach back to the Middle Ages – but is also a modern city with excellent infrastructure. With its seven colleges and universities and forty thousand students the city is an important academic centre. Częstochowa is famous for the Pauline’s monastery in Jasna Góra with its miraculous painting of Holly Mary known as “Black Madonna”. Every year the sanctuary is visited by four to five millions pilgrims from more than eighty countries.

     The streets of Częstochowa positively buzz with life in the evenings. There are nice restaurants and pubs with excellent atmosphere for dinner or an evening beer.

      We look forward to your visit to Częstochowa on June 29 – July 3, 2026.

Organizing Committee