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3β-DOXYL-5α-cholestane, free radical - ≥95% , CAS No.55569-61-4

3β-DOXYL-5α-cholestane, free radical - ≥95% , CAS No.55569-61-4

CAS: 55569-61-4 Cat. No.: D331226 Molecular Weight: 472.77

COA

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3β-DOXYL-5α-cholestane, free radical - ≥95% CAS No(55569-61-4) by Aladdin Scientific

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AVAILABLE TO ORDER

GRADE & PURITY ≥95%

Synonyms

DTXSID20369126 | CID 2724316 | AC1MC4OB | 3-Doxyl-5-alpha-cholestane,free radical | 4′,4′-Dimethylspiro(5α-cholestane-3,2′-oxazolidin)-3′-yloxy, free radical

Storage

Store at -20°C

Shipped In

Ice chest + Ice pads

Overview Specifications Names and Identifiers Documentation Advanced Data 3D Structure Certificates（CoA,COO,BSE/TSE and Analysis Chart) Chemical and Physical Properties Solution Calculators Reviews

🧪

Why this grade

≥95% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Store at -20°C Ships Ice chest + Ice pads Check lot-specific COA for exact specifications.

📋

Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

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Literature proof

Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

3β-DOXYL-5α-cholestane, free radical is a spin label for EPR studies and electron spin-lattice relaxation times in aqueous dispersions.

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

Specifications

Synonyms

DTXSID20369126 | CID 2724316 | AC1MC4OB | 3-Doxyl-5-alpha-cholestane, free radical | 4′, 4′-Dimethylspiro(5α-cholestane-3, 2′-oxazolidin)-3′-yloxy, free radical

Specifications & Purity

≥95%

Storage

Store at -20°C

Shipped In

Ice chest + Ice pads

This product requires cold chain shipping. Ground and other economy services are not available.

Purity

≥95%

Names and Identifiers

Canonical Smiles	CC(C)CCCC(C)C1CCC2C1(CCC3C2CCC4C3(CCC5(C4)N(C(CO5)(C)C)[O])C)C
InChIKey	ODDFHESUNMAHDN-LJGTUOGHSA-N
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
Isomeric SMILES	C[C@H](CCCC(C)C)[C@H]1CC[C@@H]2[C@@]1(CC[C@H]3[C@H]2CC[C@@H]4[C@@]3(CCC5(C4)N(C(CO5)(C)C)[O])C)C
WGK Germany	3
Molecular Weight	472.77
Reaxy-Rn	33407386
Reaxys-RN_link_address	https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=33407386&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

3D Structure

Certificates（CoA,COO,BSE/TSE and Analysis Chart)

C of A & Other Certificates(BSE/TSE, COO):

Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

2 results found

Lot Number	Certificate Type	Date	Item
J2520492	Certificate of Analysis	Aug 22, 2025	D331226
J2520493	Certificate of Analysis	Aug 22, 2025	D331226

Chemical and Physical Properties

Solubility	Soluble in 10 mg/ml chloroform
Melt Point(°C)	176-178° C

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