5-氮杂螺环[4.4]壬-5-二(三氟甲烷)磺酰亚胺，99.8%，用于钙钛矿太阳能电池

5-Azaspiro[4.4]nonan-5-ium bis(trifluoromethane)sulfonimide, 99.8%, for perovskite solar cell