(5-hydroxy-3,4,4,5-tetramethyl-4,5-dihydro-pyrazol-1-yl)-p-tolyl-methanone 1-(p-methylbenzoyl)-5-hydroxy-3,4,4,5-tetramethyl-2-pyrazoline 1H-pyrazol-5-ol, 4,5-dihydro-3,4,4,5-tetramethyl-1-(4-methylbenzoyl)-, (5R)- 3,4,4,5-tetramethyl-1-(4-methylbenzoyl)-4,5-dihydro-1H-pyrazol-5-ol 5-hydroxy-1-(4'-methylbenzoyl)-3,4,4,5-tetramethyl-4,5-dihydro-1H-pyrazole 87885-63-0 InChI=1/C15H20N2O2/c1-10-6-8-12(9-7-10)13(18)17-15(5,19)14(3,4)11(2)16-17/h6-9,19H,1-5H3/t15-/m1/s