|Unit Price:||USD 10.0000 / Kilogram |
|Payment Type:||L/C,T/T,D/P,Paypal,Money Gram,Western Union|
|Min. Order:||1 Kilogram|
|Delivery Time:||15 Days|
Model No.: SY-57885
Storage: Store At RT
Supplier: Shandong Shenyu
Grade: Industry Grade
Delivery Time: 7-15 Workdays
Place of Origin: China
Supply Ability: 2000Ton
HS Code: -
Port: Qingdao,Shanghai,Lianyun Gang
Cholesterol, also known as cholesterol, is a derivative of cyclopentane polyhydric phenanthrene, an important component of various membrane structures and myelin sheath in human cells. The body weight is 70 kg of normal people, containing about 140 grams of cholesterol in the body. In eighteenth Century, people found cholesterol in cholelithiasis. In 1816, chemist Ben schael had this lipid. The nature of the substance is named cholesterol. Cholesterol is ubiquitous in animals, especially in the brain and nerve tissue, and is also high in kidney, spleen, skin, liver and bile. Its solubility is similar to fat, insoluble in water, soluble in ether, chloroform and other solvents.
Cholesterol is related to human tissues, bile acids and hormones. It is an important substance indispensable to animal tissue cells. It is not only involved in the formation of cell membrane, but also the precursor of synthetic bile acids, steroid hormones and vitamin D3. The source of cholesterol is two, exogenous from cholesterol in the diet, endogenous from the body's own synthesis. When exogenous cholesterol is increased, the synthesis of endogenous cholesterol can be inhibited by feedback. Fat in the diet helps the absorption of cholesterol. Cholesterol can be converted to bile acids or steroids by metabolism. The absorption of cholesterol also depends on the intake, which reduces the percentage of absorption when the intake is high. The human absorption of cholesterol is lower than 10% at the high level, and the others are discharged through the feces. Cholesterol in the diet is absorbed into the blood in the form of chylous particles. Because cholesterol is not soluble in water, it is transported in the blood in the form of lipoprotein binding. The physiological functions of cholesterol are composed of cell membrane, nerve myelin sheath and brain, and can be converted into bile acids and steroid hormones. Cholesterol transport is mainly composed of two lipoproteins: low density lipoprotein (LDL) and high-density lipoprotein (HDL). The former can transport cholesterol from the liver to the tissue cells of the whole body, while the latter transport cholesterol from the tissue cells to the liver. The cholesterol level in human blood can reflect the overall metabolism of human cholesterol. The total cholesterol content in fasting plasma of normal adults is 2.83 to 5.17mmol/L. Abnormal cholesterol metabolism is easy to cause cholesterol deposition in the inner wall of blood vessels, forming atherosclerosis, causing coronary heart disease and stroke.
Cholesterol Product details:
English Name: Cholesterol
English synonyms: (3.beta.) -Cholest-5-en-3-ol; (3 beta) -cholest-5-en-3-ol; 3 beta -hydroxycholest-5-ene; 5,6-Cholesten-3beta-ol; 5:6-cholesten-3-beta-ol; 5:6-Cholesten-3beta-ol; 5-Cholesten-3B-ol; 5-cholesten-3 beta -ol.
Molecular formula: C27H46O
Molecular weight: 386.65
Melting point 148-150 C
Specific spin luminosity -36 (c=2, dioxane)
Boiling point 360 C
Flash point 250 C
Storage condition 2-8 degree C
Solubility H2O: 0.002 mg/mL
1. used for the study of raw materials and biochemical studies of the phospholipid cholesterol flocculation test, vitamin D, hormone and other drugs.
2. as a biochemical reagent and emulsifier and so on
3. the preparation of artificial bezoar and hormone drugs can also be used as emulsifiers.
4. used as an emulsifier, raw material of artificial bezoar, vitamin D, liquid crystal and synthetic hormone, used for biochemical research.
5. is an important raw material for making hormones, and can be used as an emulsifier.
6. biochemical studies, the phospholipid cholesterol flocculation test. Cholesterol is the main component of the biofilm, and about 25% of total phosphatidylcholine is cholesterol.
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.
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Get medical aid immediately. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.
Storage: Store in a tightly closed container. Do not store in glass. Store in a cool, dry area away from incompatible substances.
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