• Cholesterol

Cholesterol

  • CasNo:57-88-5
  • Purity:99%

Product Details;

CasNo: 57-88-5

Molecular Formula: C27H46O

Appearance: White to faintly yellow cryst. powder

Chinese Factory Supply High Purity 99% Cholesterol 57-88-5 Efficient Shipping

  • Molecular Formula:C27H46O
  • Molecular Weight:386.662
  • Appearance/Colour:White to faintly yellow cryst. powder 
  • Vapor Pressure:2.95E-11mmHg at 25°C 
  • Melting Point:148-150 °C 
  • Refractive Index:1.525 
  • Boiling Point:480.648 °C at 760 mmHg 
  • PKA:15.03±0.70(Predicted) 
  • Flash Point:209.291 °C 
  • PSA:20.23000 
  • Density:0.988 g/cm3 
  • LogP:7.38870 

Cholesterol(Cas 57-88-5) Usage

Description

Cholesterol is a lipid that plays a crucial role in various physiological functions, including cell membrane structure, hormone synthesis, and overall metabolic balance.

Physical Characteristics

Appearance: White to faintly yellow crystalline powder.
First discovered in 1769 by Poulletier dela Salle, isolated from bile and gallstones.

Physiological Importance

Vital for physiological functions but emphasizes the importance of maintaining healthy levels to prevent atherosclerosis and associated cardiovascular risks.
Occurs in the intestines, and dietary cholesterol is absorbed in the form of chylomicrons into the bloodstream.

Distribution in the Body

A normal person weighing 70 kg contains about 140 grams of cholesterol in the body.
Rough distribution in various tissues is relatively stable.

Roles in the Body

Formation of cell membranes.
Raw material for the synthesis of bile acids, vitamin D, and steroid hormones.
Stable total serum cholesterol levels are crucial for overall health.

Cholesterol Transport

Two major lipoproteins involved in cholesterol transport: low-density lipoprotein (LDL) and high-density lipoprotein (HDL).
LDL transports cholesterol from the liver to body tissue cells, while HDL transports cholesterol from tissue cells back into the liver.

Industrial Uses

Employed in the production of artificial bezoar and the preparation of hormone drugs.
Used in the pharmaceutical and cosmetic industries for its emulsifying and emollient properties.

Synthesis and Purification

Commercially obtained from the spinal cord of cattle by extraction with petroleum ethers.
Purification is achieved by repeated bromination, and cholesterol may also be produced synthetically.

Definition

ChEBI: A cholestanoid consisting of cholestane having a double bond at the 5,6-position as well as a 3beta-hydroxy group.

Hazard

Questionable carcinogen.

Safety Profile

Experimental teratogenic and reproductive effects. Questionable carcinogen with experimental carcinogenic and tumorigenic data. Mutation data reported. Used in pharmaceutical and dermal preparations as an emulsifying agent. When heated to decomposition it emits acrid smoke and irritating fumes.

storage

Cholesterol is stable and should be stored in a well-closed container, protected from light.

InChI:InChI=1/C27H46O/c1-18(2)7-6-8-19(3)23-11-12-24-22-10-9-20-17-21(28)13-15-26(20,4)25(22)14-16-27(23,24)5/h9,18-19,21-25,28H,6-8,10-17H2,1-5H3/t19-,21+,22+,23-,24+,25+,26+,27-/m1/s1

57-88-5 Relevant articles

Stereochemical Fate of the Isopropylidene Methyl Groups of Lanosterol during the Biosynthesis of Isofucosterol in Pinus Pinea

Nicotra, Francesco,Ronchetti, Fiamma,Russo, Giovanni,Lugaro, Giuseppe,Casellato, Marilena

, p. 498 - 502 (1981)

Lanosterol (16) was administered to Pinu...

Highlights of the report of the expert panel on blood cholesterol levels in children and adolescents

-

, By National Cholesterol Education Program (U.S.). Expert Panel on Blood Cholesterol Levels in Children and Adolescents

… blood cholesterol levels and higher intakes of saturated fatty acids and cholesterol, and US adults have higher blood cholesterol levels and higher rates of CHD morbidity and mortality. …

Reduction of Blood Cholesterol in Man

O. J. POLLAK

, Circulation. 1953;7:702–706

Excess supply of plant sterol was required in clinical experiments because the material used contained but 75 to 80 per cent of sitosterol and because of the large amount of endogenous cholesterol which has to be inactivated by the sitosterol, besides exogenous cholesterol.

Method for preparing cholesterol and derivatives thereof by taking phytosterol as raw material

-

Paragraph 0065, (2021/02/20)

The invention discloses a method for pre...

57-88-5 Process route

1α-Hydroxy-5-cholesten-3-on
80239-44-7

1α-Hydroxy-5-cholesten-3-on

cholesterol
57-88-5

cholesterol

5-Cholesten-1α,3α-diol
50392-20-6

5-Cholesten-1α,3α-diol

1α,3β-dihydroxycholest-5-ene
26358-75-8

1α,3β-dihydroxycholest-5-ene

Conditions
Conditions Yield
With lithium; ammonium chloride; In diethyl ether; ammonia; at -33 ℃; for 0.5h; Yield given. Yields of byproduct given;
 
(4-nitro-phenyl)-cholesteryl carbonate
79824-96-7

(4-nitro-phenyl)-cholesteryl carbonate

4-nitro-phenol
100-02-7,78813-13-5,89830-32-0

4-nitro-phenol

carbon dioxide
124-38-9,18923-20-1

carbon dioxide

cholesterol
57-88-5

cholesterol

Conditions
Conditions Yield
With cloned RNA; saline buffer; In tetrahydrofuran; at 37 ℃; for 72h; pH=7.5; Enzyme kinetics;
 

57-88-5 Upstream products

  • 604-35-3
    604-35-3

    Cholesteryl acetate

  • 25092-65-3
    25092-65-3

    allyl cholesteryl ether

  • 1857-80-3
    1857-80-3

    5α,6β-dibromocholestan-3β-ol

  • 1182-65-6
    1182-65-6

    cholesteryl p-toluenesulfonate

57-88-5 Downstream products

  • 6252-45-5
    6252-45-5

    Cholesterol-3-tetrahydropyranylether

  • 2930-80-5
    2930-80-5

    17-(1,5-Dimethyl-hexyl)-3-iodo-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene

  • 1856-05-9
    1856-05-9

    Trimethylsilylaether von Cholesterol

  • 601-54-7
    601-54-7

    cholest-5-en-3-one

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