Caftaric acid is a natural product. References: Chun-Hua Wu, et al. Enhanced production of caftaric acid, chlorogenic acid and cichoric acid in suspension cultures of Echinacea purpurea by the manipulation of incubation temperature and photoperiod. Biochemical Engineering Journal Volume 36, Issue 3, 1 October 2007, Pages 301–303 [2]. Trousdale E., Caftaric acid disappearance and conversion to products of enzymic oxidation in grape must and wine. American Journal Of Enology & Viticulture, 1985, 50-56

纯度：≥98%

CAS：67879-58-7