Pyridine sulfur trioxide

Nanjing Shunxiang Pharmaceutical Technology Co., Ltd. specializes in pharmaceutical chemical intermediates, integrating R&D, production, sales, and information services. As China's original manufacturer of Di-tert-butyl dicarbonate (Di-Boc/DIBOC) — tracing back to its predecessor Jingxiang Chemical Factory founded in 1995, with DIBOC R&D from 2001, batch manufacturing from 2005, an independent DIBOC factory from 2008, and a National Invention Patent for the DIBOC production process awarded in 2009 — the company now operates annual production capacities of 5,000 tons of Di-Boc, 1,500 tons of Diisopropyl azodicarboxylate (DIAD, produced since 2003), 150 tons of pyridine sulfur trioxide (PST), 120 tons of Pyridinium 4-toluenesulfonate (PPTS), 90 tons of Pyridinium Tribromide (PHBP), and 80 tons of Di-tert-Butyl azodicarboxylate (DBAD). Offering CRO contract research services, an internationally certified and experienced R&D team, and a rich product line, the company distributes to markets across North America, Asia, the Middle East, Africa, Central/South America, Western and Eastern Europe, and Australasia.