filter4dEuler Filter. Cinema 4D has stocked up in the never-ending fht against gimbal lock. In addition to the coordinate Order, Freeze All and the Quaternion Rotation option, it now has the Eulerフェノールレッド liquid, 0.5%, sterile-filtered, BioReagent, suitable for cell culture; CAS Number: 143-74-8; Synonyms: Phenolsulfonphthalein solution at Sma-Aldrich