This product is a specialized medium designed for the in vitro culture of embryonal carcinoma (EC) cells. Its formulation precisely mimics the unique microenvironment required for pluripotent stem cell survival. Enriched with specific growth factors and signaling pathway inhibitors essential for maintaining EC cell self-renewal and an undifferentiated state, it effectively supports rapid proliferation while stably preserving highly undifferentiated morphological characteristics and robust positive expression of pluripotency markers (e.g., Oct-4, Nanog).