The Butanoic acid,4,4'-(1,1,3,3-tetramethyl-1,3-disiloxanediyl)bis- is an organic compound with the formula C₁₂H₂₆O₅Si₂. The IUPAC name of this chemical is 4-[[(4-Hydroxy-4-oxobutyl)-dimethylsilyl]oxy-dimethylsilyl]butanoic acid. With the CAS registry number 3353-68-2, it is also named as 1,3-Bis(3-carboxypropyl)tetramethtldisiloxane.

Physical properties about Butanoic acid,4,4'-(1,1,3,3-tetramethyl-1,3-disiloxanediyl)bis- are: (1)ACD/LogP: 4.25; (2)ACD/LogD (pH 5.5): 2.76; (3)ACD/LogD (pH 7.4): -0.33; (4)ACD/BCF (pH 5.5): 32.24; (5)ACD/BCF (pH 7.4): 1; (6)ACD/KOC (pH 5.5): 157.5; (7)ACD/KOC (pH 7.4): 1; (8)#H bond acceptors: 5; (9)#H bond donors: 2; (10)#Freely Rotating Bonds: 10; (11)Polar Surface Area: 61.83 Å²; (12)Index of Refraction: 1.456; (13)Molar Refractivity: 79.95 cm³; (14)Molar Volume: 293.7 cm³; (15)Polarizability: 31.69×10^-24 cm³; (16)Surface Tension: 30.6 dyne/cm; (17)Density: 1.043 g/cm³; (18)Flash Point: 183.2 °C; (19)Enthalpy of Vaporization: 68.87 kJ/mol; (20)Boiling Point: 379.3 °C at 760 mmHg; (21)Vapour Pressure: 8.44E-07 mmHg at 25 °C.

When you are using this chemical, please be cautious about it as the following:
It is irritating to eyes, respiratory system and skin. When you are using it, wear suitable protective clothing, gloves and eye/face protection. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.

You can still convert the following datas into molecular structure:
(1)InChI: InChI=1/C12H26O5Si2/c1-18(2,9-5-7-11(13)14)17-19(3,4)10-6-8-12(15)16/h5-10H2,1-4H3,(H,13,14)(H,15,16)
(2)InChIKey: DNNFJTRYBMVMPE-UHFFFAOYAH
(3)Std. InChI: InChI=1S/C12H26O5Si2/c1-18(2,9-5-7-11(13)14)17-19(3,4)10-6-8-12(15)16/h5-10H2,1-4H3,(H,13,14)(H,15,16)
(4)Std. InChIKey: DNNFJTRYBMVMPE-UHFFFAOYSA-N