The 4-(Toluene-4-sulfonyloxy)piperidine-1-carboxylic acid tert-butyl ester is an organic compound with the formula C₁₇H₂₅NO₅S. With the CAS registry number 118811-07-7, it is also named as 1-Piperidinecarboxylic acid, 4-[[(4-methylphenyl)sulfonyl]oxy]-, 1,1-dimethylethyl ester and tert-Butyl 4-{[(4-methylphenyl)sulfonyl]oxy}piperidine-1-carboxylate.

Physical properties about this chemical are: (1)ACD/LogP: 2.85; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 3; (4)ACD/LogD (pH 7.4): 3; (5)ACD/BCF (pH 5.5): 58; (6)ACD/BCF (pH 7.4): 58; (7)ACD/KOC (pH 5.5): 640; (8)ACD/KOC (pH 7.4): 640; (9)#H bond acceptors: 6; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 5; (12)Index of Refraction: 1.553; (13)Molar Refractivity: 91.923 cm³; (14)Molar Volume: 287.292 cm³; (15)Surface Tension: 48.766 dyne/cm; (16)Density: 1.237 g/cm³; (17)Flash Point: 241.242 °C; (18)Enthalpy of Vaporization: 73.877 kJ/mol; (19)Boiling Point: 475.282 °C at 760 mmHg.