High Quality Cholesterol 99% Powder for Medicinal Excipients Cholesterol 5-cholesten-3β-ol CAS 57-88-5 CAS NO.57-88-5

Cholesterol, also known as cholesterol, a derivative of cyclopentane polyhydrophenanthrene, is an important component of various membrane structures of human cells and nerve myelin sheaths. A normal person weighing 70 kg contains about 140 grams of cholesterol in the body. Cholesterol was discovered in gallstones as early as the 18th century. In 1816, chemist Bencher named this substance with lipid properties as cholesterol. Cholesterol is widely present 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, and easily soluble in ether, chloroform and other solvents. Cholesterol is related to human tissues, bile acids and hormones. It is an indispensable and important substance for animal tissue cells. It not only participates in the formation of cell membranes, but also is a precursor for the synthesis of bile acids, steroid hormones and vitamin D3. There are two sources of cholesterol, exogenous from dietary cholesterol, and endogenous from the body's own synthesis. When exogenous cholesterol increases, it can feedback inhibit the synthesis of endogenous cholesterol. Dietary fat can help cholesterol absorption. Cholesterol is metabolized into bile acids or steroid hormones. Cholesterol absorption also depends on the intake. When the intake is high, the percentage of absorption will decrease. Human absorption of cholesterol is less than 10% when the intake is high, and the rest is excreted through the feces. Dietary cholesterol is absorbed into the bloodstream in the form of chylomicrons. Since cholesterol is insoluble in water, it is transported in the blood in a form bound to lipoproteins. The physiological function of cholesterol is to form cell membranes, nerve myelin sheaths, and brain, and can be converted into bile acids and steroid hormones. There are mainly two lipoproteins involved in cholesterol transport: low-density lipoprotein (LDL) and high-density lipoprotein (HDL). The former can transport cholesterol from the liver to the whole body tissue cells, while the latter transport cholesterol from the tissue cells to the liver. The cholesterol content in human blood can reflect the overall metabolic status of human cholesterol. The content of total cholesterol in fasting blood plasma of normal adults is 2.83-5.17mmol/L. Abnormal cholesterol metabolism can easily lead to the deposition of cholesterol in the inner wall of blood vessels, forming atherosclerosis, causing coronary heart disease and stroke.

(1) Participate in the formation of cell membranes.

(2) Cholesterol is the raw material for the synthesis of bile acids, vitamin D and steroid hormones.

(3) The total cholesterol in normal human serum in China is about 182.5±4.3 mg%. High levels of cholesterol in the blood may indicate a possible disorder of cholesterol metabolism. Serum cholesterol levels are often elevated in patients with coronary atherosclerosis. Therefore, the determination of serum cholesterol levels in clinical laboratory tests will help to diagnose certain diseases.

Wuhan Kanal Technology Co., Ltd. founded in 2010,it is a large manufacturer of fine Pharmaceutical& Chemical & Cosmetic materials that integrates R&D, production and sales together.  Our Kanal company is established under the support of the Wuhan city government, so Kanal has large advantages in enterprise credit, finance security, product quality control, and cargo export.Kanal locates in the national new materials industry park of Wuhan city and is awarded the title of high-tech corporation.

Wuhan Kanal has its own R&D and development laboratory. We Kanal set up a R&D team with rich experience and strong technical strength, most of the practitioners have more than ten years' experience and technology in organic synthesis development. It owns almost 15 acre and more than 280 workers.

An ISO 9001 & GMP qualified company, we are mainly specialized in producing high quality but low price Pharmaceutical intermediates, APIs and other fine chemicals & cosmetics products which related to human and animals medicines as well as additives in gas &oil field, almost half of the goods are for exporting. What's more, we provide the OEM (customize) manufactures, if you can't find materials from the world, then tell us, we will research and produce in our high-tech equipmented laboratory. We are dedicated to satisfying our customers with our products and services.


1. We has 11 years' exporting experience in active pharmaceutical ingredient products.
Our professional and thoughtful after-sales service eliminates your worries.

2.We can provide you with ten thousands of products of different levels.

3. We offer convenient one-station purchasing service.

(1)Any inquiries will be replied within 12 hours.
(2)Dedication to quality, supply & service.
(3)Strictly on selecting raw materials.
(4)Reasonable & competitive price, fast lead time.

Our company is based on the optical valley biological city,making full use of the park policy advantages, focusing on the research and development of biological medicine.

The pharmaceutical intermediates are mainly applied to anti-cancer, anti-depression, cardiovascular, diabetes and other new medicine. The chemical intermediates mainly refer to heterocyclics and OLED intermediates.Our factory produce new fine chemical materials which are mainly used in water treatment, bactericidal and anti-corrosion, dyes, electronic materials and other industry fields.
Wuhan Kanal has export & import license, and hazard chemical sales license. The products are exported to America, Brazil, South Korea, Japan, Taiwan, Malaysia, Thailand, Indonesia, Europe union and other countries or regions. 
Under rich experiences and excellent international reputation, the company becomes a quite influential enterprise in China's API field. Wuhan Kanal sincerely look forward to establishing long good cooperation with our customers from all over the world.