Zhejiang Regen Chemical

Zhejiang Regen Chemical is a Chinese manufacturer of pharmaceutical raw materials, intermediates, and specialty chemicals based in Taizhou, Zhejiang. The company supplies commercial small-molecule active pharmaceutical ingredients and intermediates across multiple product families, including compounds related to apixaban, rivaroxaban, linagliptin, fluoxetine, lercanidipine, posaconazole, ruxolitinib, finerenone, bictegravir, acalabrutinib, and pirtobrutinib. It also produces specialty chemicals such as piroctone olamine and pyrithione derivatives including zinc pyrithione and copper pyrithione. The company describes itself as a national high-tech enterprise with an in-house provincial R&D center, analytical capabilities, ISO9001 quality certification, and chemical production plus waste-treatment infrastructure. Overall, it appears to be a commercial-stage API and specialty chemical supplier rather than a drug developer with a disclosed proprietary clinical pipeline.