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cholesterol

CAS No.: 57-88-5
Formula: C27H46O
Molecular Weight: 386.65400
Suppliers: All(0) China Suppliers(23) Products(44)
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What is cholesterol

**Introduction to Cholesterol** Cholesterol is a waxy, fat-like substance essential for building cell membranes, producing hormones, and aiding digestion. While the liver produces most of the body's cholesterol, it is also obtained through animal-based foods like meat, dairy, and eggs. Cholesterol travels through the bloodstream in lipoproteins—LDL (low-density lipoprotein) and HDL (high-density lipoprotein). High LDL ("bad" cholesterol) can lead to plaque buildup in arteries, increasing heart disease risk, while HDL ("good" cholesterol) helps remove excess cholesterol. Maintaining balanced cholesterol levels through a healthy diet, exercise, and regular check-ups is crucial for cardiovascular health. Understanding cholesterol empowers better lifestyle choices for long-term well-being.

Preparation Process: Cholesterol can be synthesized via the mevalonate pathway in living organisms. The process begins with acetyl-CoA, which undergoes condensation to form 3-hydroxy-3-methylglutaryl-CoA (HMG-CoA). HMG-CoA reductase then converts HMG-CoA to mevalonate. Mevalonate is phosphorylated and decarboxylated to yield isopentenyl pyrophosphate (IPP), which isomerizes to dimethylallyl pyrophosphate (DMAPP). IPP and DMAPP condense to form geranyl pyrophosphate (GPP) and farnesyl pyrophosphate (FPP). Two FPP molecules combine to produce squalene, which undergoes cyclization to form lanosterol. Lanosterol is then modified through a series of oxidation, reduction, and demethylation steps to yield cholesterol. This biosynthesis occurs primarily in the liver.

Usage Scenarios: Cholesterol is a vital lipid molecule essential for various biological functions. It serves as a structural component of cell membranes, maintaining their fluidity and integrity. Cholesterol is a precursor for the synthesis of steroid hormones, including cortisol, aldosterone, and sex hormones like estrogen and testosterone. It also aids in bile acid production, which is crucial for fat digestion and absorption. Additionally, cholesterol plays a role in vitamin D synthesis, supporting bone health and immune function. In the nervous system, it contributes to myelin sheath formation, ensuring efficient nerve signal transmission. While excessive cholesterol can pose health risks, regulated levels are indispensable for physiological processes.

cholesterol Basic Info
Chemical Name cholesterol
Synonyms 20-Dihydro-11-deoxycortisol; cholesterin; 20-Dihydro Cortexolone; Cholest-5-en-3-ol (3β)-; Cholesterol
CAS No. 57-88-5
Molecular Formula C27H46O
Molecular Weight 386.65400
PSA 20.23000
LogP 7.38870
cholesterol Price
United States: $10-$50
China: $5-$30
Russia: $8-$40
Germany: $15-$60
India: $3-$20
Japan: $20-$70
Brazil: $7-$35
South Korea: $12-$50
Philippines: $5-$25
United Kingdom: $15-$60
France: $20-$70
Mexico: $6-$30
Canada: $12-$50
South Africa: $8-$40
Egypt: $5-$25
Turkey: $10-$50
Thailand: $5-$30
Indonesia: $4-$25
MSDS
MSDS
Name: Cholesterol 95+% (gc) Material Safety Data Sheet
Synonym: Cholest-5-en-3-beta-ol; Dythol; Cholesterine; Beta-hydroxycholest-5-ene
CAS: 57-88-5
Section 1 - Chemical Product   MSDS Name:Cholesterol 95+% (gc) Material Safety Data Sheet
Synonym:Cholest-5-en-3-beta-ol; Dythol; Cholesterine; Beta-hydroxycholest-5-ene

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
57-88-5 CHOLESTEROL 95.0+ 200-353-2
Hazard Symbols: T
Risk Phrases: 25

Section 3 - HAZARDS IDENTIFICATION
  EMERGENCY OVERVIEW
Toxic if swallowed.
Potential Health Effects
Eye:
Dust may cause mechanical irritation.
Skin:
May cause skin irritation. Low hazard for usual industrial handling.
Ingestion:
Ingestion of large amounts may cause gastrointestinal irritation.
Expected to be a low ingestion hazard.
Inhalation:
May cause respiratory tract irritation. Low hazard for usual industrial handling.
Chronic:
No information found.

Section 4 - FIRST AID MEASURES
  Eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.
Skin:
Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
Ingestion:
If victim is conscious and alert, give 2-4 cupfuls of milk or water.
Never give anything by mouth to an unconscious person. Get medical aid immediately.
Inhalation:
Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:

Section 5 - FIRE FIGHTING MEASURES
  General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. This material in sufficient quantity and reduced particle size is capable of creating a dust explosion.
Extinguishing Media:
Use water spray, dry chemical, carbon dioxide, or appropriate foam.

Section 6 - ACCIDENTAL RELEASE MEASURES
  General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Clean up spills immediately, observing precautions in the Protective Equipment section. Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions. Provide ventilation.

Section 7 - HANDLING and STORAGE
  Handling:
Wash thoroughly after handling. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed.
Avoid ingestion and inhalation.
Storage:
Keep from contact with oxidizing materials. Store in a cool, dry, well-ventilated area away from incompatible substances. Keep refrigerated. (Store below 4C/39F.) Keep containers tightly closed.

Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
  Engineering Controls:
Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 57-88-5: Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.

Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
 
Physical State: Powder
Color: white to light yellow
Odor: almost odorless.
pH: Not available.
Vapor Pressure: Negligible.
Viscosity: Not available.
Boiling Point: 360 deg C
Freezing/Melting Point: 148.75 - 150.25 deg C
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water:
Specific Gravity/Density: 1.067
Molecular Formula: C27H46O
Molecular Weight: 386.65

Section 10 - STABILITY AND REACTIVITY
  Chemical Stability:
Stable.
Conditions to Avoid:
Incompatible materials, dust generation.
Incompatibilities with Other Materials:
Strong oxidizing agents.
Hazardous Decomposition Products:
Carbon monoxide, carbon dioxide, acrid smoke and fumes.
Hazardous Polymerization: Will not occur.

Section 11 - TOXICOLOGICAL INFORMATION
  RTECS#:
CAS# 57-88-5: FZ8400000 LD50/LC50:
Not available.
Carcinogenicity:
CHOLESTEROL - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.

Section 12 - ECOLOGICAL INFORMATION
  Other No information available.

Section 13 - DISPOSAL CONSIDERATIONS
  Dispose of in a manner consistent with federal, state, and local regulations.

Section 14 - TRANSPORT INFORMATION
 
IATA
Not regulated as a hazardous material.
IMO
Not regulated as a hazardous material.
RID/ADR
Not regulated as a hazardous material.

Section 15 - REGULATORY INFORMATION
 
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: T
Risk Phrases:
R 25 Toxic if swallowed.
Safety Phrases:
S 24/25 Avoid contact with skin and eyes.
WGK (Water Danger/Protection)
CAS# 57-88-5: 1
Canada
CAS# 57-88-5 is listed on Canada's DSL List.
CAS# 57-88-5 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 57-88-5 is listed on the TSCA inventory.


SECTION 16 - ADDITIONAL INFORMATION
N/A
SDS 1.0
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