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253537

Sigma-Aldrich

3β-DOXYL-5α-cholestane, free radical

Synonym(s):

4′,4′-Dimethylspiro(5α-cholestane-3,2′-oxazolidin)-3′-yloxy, free radical

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About This Item

Empirical Formula (Hill Notation):
C31H55NO2
CAS Number:
55569-61-4
Molecular Weight:
473.77
MDL number:
MFCD00074781
UNSPSC Code:
12352000
PubChem Substance ID:
24855313
NACRES:
NA.22

form

solid

mp

176-178 °C (lit.)

functional group

ether

storage temp.

2-8°C

SMILES string

CC(C)CCC[C@@H](C)[C@H]1CC[C@H]2[C@@H]3CC[C@H]4CC5(CC[C@]4(C)[C@H]3CC[C@]12C)OCC(C)(C)N5[O]

InChI

1S/C31H54NO2/c1-21(2)9-8-10-22(3)25-13-14-26-24-12-11-23-19-31(32(33)28(4,5)20-34-31)18-17-29(23,6)27(24)15-16-30(25,26)7/h21-27H,8-20H2,1-7H3/t22-,23+,24+,25-,26+,27+,29+,30-,31?/m1/s1

InChI key

ODDFHESUNMAHDN-LJGTUOGHSA-N

Application

Free radical spin label used for EPR studies.
  • Studying transversal relaxation of nitroxides for PELDOR in phospholipid membranes
  • Comparative studies of effect of cholesterol on bicelle model membranes
  • Spin probe for studying electron spin-lattice relaxation times in aqueous dispersions via saturation recovery
  • Probing cooperative and local modes of poly(Me acrylate) sample using ESR
  • Studying random disorder effects of hydrophyobic aerosil on order and dynamics of the probe in 5CB nematic liquid crystals

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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Certificates of Analysis (COA)

Lot/Batch Number
12826CZ

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