Manufacturer Supply High Quality CAS 478-43-3 Rhein

• CAS No.: 478-43-3
• Formula: C15h8o6
• EINECS: 207-521-4
• Type: Synthesis Material Intermediates
• Appearance: White Powder
• Quality: Industrial
• Model NO.: TY-02ALI
• Colour: White
• Package: Foil Bag
• Place: China
• Assay: 99%
• Shelf: 2 Years
• Transport Package: 25kg/Drum 5g, 100g, 500g, 1kg, 10kg, 100kg, 200kg
• Specification: 25kg/drum
• Trademark: tongyon
• Origin: China
• Production Capacity: 5000kg/Month

Product Description

 

Product name	Rhein
CAS	478-43-3
Appearance	white powder
Assay	99%
Storage	Cool and Protect from light

Product Name Rhein

CAS 478-43-3

MF C15H8O6

MW 284.22

EINECS 207-521-4

MOL File 478-43-3.mol   Melting point ≥300 °C (lit.)
Boiling point 346.72°C (rough estimate)
Density  1.3269 (rough estimate)
refractive index  1.4413 (estimate)
storage temp.  2-8°C
pka 3.17±0.20(Predicted)
form  neat
Water Solubility  <0.1 g/100 mL at 17 ºC


Usage And Synthesis
Physical and Chemical Properties

The chemical name of Rhein is 1,8-dihydroxy anthraquinone-3-carboxylic acid, with the molecular formula C15H8O6 and the molecular weight of 284.21. It becomes yellow acicular crystal after sublimation, with the melting point 321~322 ºC and decomposition temperature 330 ºC and UVλmax (methanoll) 229, 258, 435nm. It is soluble in alkali and pyridinee, and slightly soluble in alcohol, ether, benzene, chloroforrm, petroleum etheer, and insoluble in water. It can form red sylvine and pink sodium salt, and form a red precipitate with calcium hydroxide and barium hydroxidee.
Production Method: being acquired from the hydrolysis of Rhein diacetic ester.
diethyl acetate. Uses: Current clinical treatment of rheumatic drugs often contain Rhein.

GuangZhou TongYi biochemistry technology Co., Ltd is a company specializing in active pharmaceutical ingredient
(API), biology, plant extracts, chemical raw materials, fine chemicals, pharmaceutical intermediates, cosmetics raw
material. Our company has always adhered to the company philosophy of integrity, professionalism, quality first, and
customer service. With the efforts of all the company's employees, it has established long-term
and stable cooperative relations with many domestic and foreign customers, and won the unanimous trust of domestic
and foreign customers. With good comments, our company have made great progress.

Our company takes pioneering and innovative, high-quality and efficient as the code of conduct, and strives to provide
customers with efficient services,
high-quality products, and reasonable prices. We have established a customer demand-oriented, flexible, diverse and customizable service according to the different needs of different customers. Mode, and ultimately achieve the goal of
win-win.

Our company focuses on the future and the world, and will continue to devote itself to technological progress and the
development of new products in the future, hoping to work hand in hand with new and old friends at home and abroad
to create a better future.