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51707

Sigma-Aldrich

Heptakis(2,3,6-tri-O-methyl)-β-cyclodextrin

≥98.0%

Synonym(s):

TM-β-CD, TM‐β‐CyD, TRIMEB, 2,3,6-Tri-O-methyl-β-cyclodextrin, Trimethyl-β-cyclodextrin

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About This Item

Empirical Formula (Hill Notation):
C63H112O35
CAS Number:
Molecular Weight:
1429.54
Beilstein:
78748
MDL number:
UNSPSC Code:
12352005
PubChem Substance ID:
NACRES:
NA.22

Quality Level

Assay

≥98.0% (TLC)
≥98.0%

form

powder or crystals

optical activity

[α]25/D +157±4°, c = 1% in H2O

mp

170-178 °C (lit.)

solubility

H2O: 50 mg/mL, slightly turbid, colorless

storage temp.

2-8°C

SMILES string

COC[C@H]1O[C@@H]2O[C@@H]3[C@@H](COC)O[C@H](O[C@@H]4[C@@H](COC)O[C@H](O[C@@H]5[C@@H](COC)O[C@H](O[C@@H]6[C@@H](COC)O[C@H](O[C@@H]7[C@@H](COC)O[C@H](O[C@@H]8[C@@H](COC)O[C@H](O[C@H]1[C@H](OC)[C@H]2OC)[C@H](OC)[C@H]8OC)[C@H](OC)[C@H]7OC)[C@H](OC)[C@H]6OC)[C@H](OC)[C@H]5OC)[C@H](OC)[C@H]4OC)[C@H](OC)[C@H]3OC

InChI

1S/C63H112O35/c1-64-22-29-36-43(71-8)50(78-15)57(85-29)93-37-30(23-65-2)87-59(52(80-17)44(37)72-9)95-39-32(25-67-4)89-61(54(82-19)46(39)74-11)97-41-34(27-69-6)91-63(56(84-21)48(41)76-13)98-42-35(28-70-7)90-62(55(83-20)49(42)77-14)96-40-33(26-68-5)88-60(53(81-18)47(40)75-12)94-38-31(24-66-3)86-58(92-36)51(79-16)45(38)73-10/h29-63H,22-28H2,1-21H3/t29-,30-,31-,32-,33-,34-,35-,36-,37-,38-,39-,40-,41-,42-,43+,44+,45+,46+,47+,48+,49+,50-,51-,52-,53-,54-,55-,56-,57-,58-,59-,60-,61-,62-,63-/m1/s1

InChI key

DSDAICPXUXPBCC-MWDJDSKUSA-N

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General description

Heptakis(2,3,6-tri-O-methyl)-β-cyclodextrin is a β-cyclodextrin derivative that finds potential use in pharmaceutical, food and cosmetic applications. Its attractive features include: the non-polar cavity desirable for its use as a molecular host for a wide range of molecules and its affinity for organic compounds in solution as well as crystalline phases.

Application

Heptakis(2,3,6-tri-O-methyl)-β-cyclodextrin may be used:
  • To investigate the crystal structure of its complexes with m-iodophenol, 4-biphenylacetic acid and (R)- and (S)-flurbiprofen by X-ray analysis.
  • To study the candidature of its complex with vitamin A for potential application as a drug delivery system for ophthalmic applications by high sensitivity fluorescence spectrometry and high pressure liquid chromatography (HPLC).
  • In the determination of analyte composition in commercial samples by HPLC coupled to mass spectrometry (MS).

Chiral additive in liquid chromatography for enantiomer resolution. Chiral separation of basic drug substances by capillary electrophoresis.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Xiaoxia Ge et al.
Se pu = Chinese journal of chromatography, 23(3), 305-307 (2005-08-30)
Heptakis (2,3,6-tri-O-ethyl)-beta-cyclodextrin (CD) (perethylated-beta-CD), heptakis (2,3,6-tri-O-propyl)-beta-CD (perpropylated-beta-CD), heptakis (2,3,6-tri-O-octyl)-beta-CD (peroctylated-beta-CD), and (2,6-di-O-benzyl)-beta-CD were used as stationary phases to prepare columns for gas chromatography by sol-gel technique. The method of coating the columns is similar to the dynamic method and the
Bin Wang et al.
Electrophoresis, 30(16), 2812-2819 (2009-08-04)
The enantiomers of five profen drugs were simultaneously separated by MEKC with the combined use of 2,3,6-tri-O-methyl-beta-cyclodextrin and chiral cationic ionic liquid, N-undecenoxy-carbonyl-L-leucinol bromide, which formed micelles in aqueous buffers. Enantioseparations of these profen drugs were optimized by varying the
Characterization of Crystalline Complexes between Heptakis (2, 3, 6-tri-O-methyl)-beta-cyclodextrin and Various Alkanes or Alkenes (5? C? 10)?
Cardinael P, et al.
Journal of Inclusion Phenomena and Macrocyclic Chemistry, 39(1-2), 159-167 (2001)
Frantzeska Tsorteki et al.
Carbohydrate research, 339(2), 233-240 (2003-12-31)
The crystal structures of the complexes of heptakis(2,3,6-tri-O-methyl)-beta-cyclodextrin with indole-3-butyric acid and with 2,4-dichlorophenoxyacetic acid were studied by X-ray diffraction. The complexes crystallize in the monoclinic P2(1) space group. The host molecules are elliptically puckered and stacked along the a
Juziro Nishijo et al.
Chemical & pharmaceutical bulletin, 52(12), 1405-1410 (2004-12-04)
The interaction of cholesterol with heptakis (2,3,6-tri-O-methyl)-beta-cyclodextrin (TOM-beta-CyD) was investigated in water using solubility method. It was found that TOM-beta-CyD forms two kinds of soluble complexes, with molar ratios of 1:1 and 1:2 (cholesterol:TOM-beta-CyD). The thermodynamic parameters for 1:1 and

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