Photoresist Chemicals Polyethylene glycol, ether with 4-hydroxy-2,2,6,6-tetramethyl-1-piperidineethanol (2:1) Cas：59535-09-0 Molecular Formula：Polyethylene glycol, ether with 4-hydroxy-2,2,6,6-tetramethyl-1-piperidineethanol (2:1)