“…2,6-DMCD 2.0 molar substitution per glucose unit; product code, H0513-5G and randomly substituted dimethyl-β -CD RDMCD, 2.0 molar substitution per glucose unit; product code, 02157320-CF, lot no., SR01729 were obtained from Sigma-Aldrich Japan, Tokyo, Japan and MP Biomedicals, LLC, Illkirch, France, respectively. α -CD, β -CD, γ -CD, methyl-β -CD Mβ -CD, 2.2 molar substitution per glucose unit 21 , trimethyl-β -CD TMβ -CD, 3.0 molar substitution per glucose unit and hydroxypropyl-β -CD Hβ -CD, 6.7 molar substitution per CD unit 22 were purchased from TCI Co. Ltd. Tokyo, Japan .…”