Merck
All Photos(4)

S1270

Sigma-Aldrich

β-Sitosterol

synthetic, ≥95%

Synonym(s):
beta-Sitosterol, α-Dihydrofucosterol, 22,23-Dihydrostigmasterol, 24α-Ethylcholesterol, 5-Stigmasten-3β-ol
Empirical Formula (Hill Notation):
C29H50O
CAS Number:
Molecular Weight:
414.71
Beilstein:
1916165
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.77

biological source

synthetic

Quality Level

assay

≥95%

form

powder

mp

136-140 °C (lit.)

functional group

hydroxyl

shipped in

ambient

storage temp.

−20°C

SMILES string

[H][C@@]1(CC[C@@]2([H])[C@]3([H])CC=C4C[C@@H](O)CC[C@]4(C)[C@@]3([H])CC[C@]12C)[C@H](C)CC[C@@H](CC)C(C)C

InChI

1S/C29H50O/c1-7-21(19(2)3)9-8-20(4)25-12-13-26-24-11-10-22-18-23(30)14-16-28(22,5)27(24)15-17-29(25,26)6/h10,19-21,23-27,30H,7-9,11-18H2,1-6H3/t20-,21-,23+,24+,25-,26+,27+,28+,29-/m1/s1

InChI key

KZJWDPNRJALLNS-VJSFXXLFSA-N

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Application

β-Sitosterol has been used:
  • to study its ability to improve the suitability of two pollens
  • as a standard in the determination of sterol purities
  • as a standard in quantitative genetic analysis
  • as a standard in the estimation of plant sterols

Packaging

10, 25, 100 mg in glass bottle

Biochem/physiol Actions

A phytosterol with structure very similar to cholesterol that exhibits estrogenic activity. Inhibits proliferation of human leukemia cells, with G2/M arrest, endoreduplication, and polymerization of α-tubulin and microtubules.
Increased β-sitosterol administration displaces cholesterol during absorption. This elevates fecal secretion. It is known to regulate intestinal immunity.

Storage Class Code

13 - Non 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

Certificate of Analysis

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Certificate of Origin

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