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Safety Information

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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

253537-10MG:
253537-VAR:
253537-25MG:
253537-BULK:

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Certificates of Analysis (COA)

Lot/Batch Number
12826CZ

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