Yuán-era nèidān 內丹 master, hào Xūbái zǐ 虛白子 (“Master of the Empty White”) — hence the conventional bibliographic form Chén Xūbái 陳虛白 — also styled Zhēnfāng dàorén 真方道人, of the Shèngzhēn xuánhuà dòngtiān 聖真玄化洞天 of the Wǔyí Mountains 武夷山. Author of [[KR5a0244|DZ 243 Chén Xūbái guīzhōng zhǐnán]] (preserved in the Daozang in two juàn; an additional Dàozàngjíyào edition is preserved as Guīzhōng zhǐnán 規中指南, DZJY JY211).
Chén must have been a contemporary of the Yuán scholar Wú Chéng 吳澂 (1249–1333), who composed three poems in dedication of another work by Chén, the Nèidān xiànmì 內丹顯密 (cf. Wú Wénzhèng jí 吳文正集 92.29b–30a). In the preface to those poems, Wú states that Chén, a dàoshì of the Wǔyí Mountains, bestowed his instructions on Yáng Qīngyuán 楊清源 — Chén’s disciple and a “student of the Cān[tóng qì]” (學《參[同契]》者). Chén thus stands within the Wǔyí nèidān tradition that combined Southern-Lineage (Nánzōng 南宗) themes with Quánzhēn 全真 vocabulary. No CBDB record was found.