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Cholesteryl stearate

Name: Cholesteryl stearate
Brand: ALDRICH

96%

Synonym(s):

5-Cholesten-3β-yl octadecanoate

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About This Item

Empirical Formula (Hill Notation):

C₄₅H₈₀O₂

CAS Number:

35602-69-8

Molecular Weight:

653.12

UNSPSC Code:

12352108

NACRES:

NA.22

PubChem Substance ID:

24892584

EC Number:

252-637-0

Beilstein/REAXYS Number:

2068492

MDL number:

MFCD00003639

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Properties

Quality Segment

100

assay

96%

form

powder

optical activity

[α]25/D −21°, c = 2 in chloroform

mp

79-83 °C (lit.)

transition temp

cholesteric phase to smectic phase 75.5 °C, isotropic phase to cholesteric phase 79.5 °C, crystalline phase to isotropic phase 83 °C

SMILES string

CCCCCCCCCCCCCCCCCC(=O)O[C@H]1CC[C@]2(C)C3CC[C@]4(C)C(CCC4C3CC=C2C1)[C@H](C)CCCC(C)C

InChI

1S/C45H80O2/c1-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-25-43(46)47-38-30-32-44(5)37(34-38)26-27-39-41-29-28-40(36(4)24-22-23-35(2)3)45(41,6)33-31-42(39)44/h26,35-36,38-42H,7-25,27-34H2,1-6H3/t36-,38+,39+,40-,41+,42+,44+,45-/m1/s1

InChI key

XHRPOTDGOASDJS-XNTGVSEISA-N

Description

General description

Cholesteryl stearate is a stearic acid ester of cholesterol. In solid-state, its autoxidation is higher than its free form.

Application

It can be used as a reference standard during the determination of tocopherols and sterols in vegetable oils by GC.

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This Item	C9253	26732	C2800
Sigma-Aldrich C79409 Cholesteryl stearate	Sigma-Aldrich C9253 Cholesteryl oleate	Sigma-Aldrich 26732 Cholesterol	Sigma-Aldrich C2800 Cholesteryl phenylacetate
assay 96%	assay ≥98% (HPLC; detection at 205 nm)	assay ≥99.0% (GC)	assay ≥98% (HPLC; detection at 258 nm)
form powder	form powder	form powder	form crystalline powder
mp 79-83 °C (lit.)	mp 44-47 °C (lit.)	mp 147-149 °C (lit.), 148-150 °C	mp -
Quality Level 100	Quality Level 200	Quality Level 200	Quality Level 200
transition temp cholesteric phase to smectic phase 75.5 °C, crystalline phase to isotropic phase 83 °C, isotropic phase to cholesteric phase 79.5 °C	transition temp -	transition temp -	transition temp -
optical activity [α]25/D −21°, c = 2 in chloroform	optical activity -	optical activity -	optical activity -

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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