Lower Price Supply High Purity Pharmaceutical intermediates CAS 81-25-4 Cholic acid CAS NO.81-25-4

English name: Cholic acid

CAS Number: 81-25-4

Molecular formula: C24H40O5

Molecular weight: 408.58

EINECS Number: 201-337-8

Melting point: 200-201°C(lit.)

Specific rotation: 36º(c=0.6,95%EtOH)

Boiling point: 449.08°C (rough estimate)

Density: 1.0310 (rough estimate)

Refractive index: 1.5800 (estimate)

Flash point: 9℃

Storage conditions: 2-8°C

Solubility: methanol: 0.1g/mL, clear

Acidity coefficient: (pKa) 4.98 (at20℃)

Form: neat Color:White to Brown

Water solubility: 0.28g/L (15ºC)

Solubility Extremely insoluble in water; soluble in ethanol. Determined by OT-42 method. Melting range 197～202℃. Determined by conventional methods. Prepare 0.02% sample solution with 50% acetic acid solution, take 1 ml, add 1 ml of 1% furfural solution, 6 ml of water and 5 ml of concentrated sulfuric acid. The mixture should turn rose and then purple within 5 minutes. Take about 10 mg of the sample, add 2 drops of benzaldehyde and 3 drops of 3:1 sulfuric acid, and heat at 50 ° C for 5 min. Add about 10ml of glacial acetic acid, and it should be brown.

This product exists in the bile of cattle, sheep and pigs. Colorless flakes or white crystalline powder. Some bitter taste, some sweet feeling after taste. Mp198°C, specific rotation (c=0.6, ethanol) is +37°. 1g of cholic acid dissolves in about 300ml of ethanol or acetone, 7ml of glacial acetic acid, and a small amount of it dissolves in water. The monohydrate is a white flaky crystal. In 1927, H. Wieland (Germany) studied the composition of cholic acid and won the Nobel Prize in Chemistry.

1. Emulsifier.

2. For biochemical research, pharmaceutical intermediates. Sodium cholate is a choleretic drug for the treatment of cholecystitis, bile deficiency, and intestinal dyspepsia.

3. An organic acid with a steroid structure that can emulsify fat and promote its digestion

4. Non-denaturing ionic detergents for extraction of membrane proteins

5. A non-denaturing ionic detergent for extracting membrane proteins.

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.