Photoresist Chemicals Benzamide, 4-[4-[[(3R)-1-butyl-3-[(R)-3-cyclopenten-1-ylhydroxymethyl]-2,5-dioxo-1, 4,9-triazaspiro[5.5]undec-9-yl]methyl]phenoxy]-N-(cyclopropylmethyl)-, monohydrochloride Cas:676454-18-5 Molecular Formula:C36H46N4O5.ClH