Bilirubin CAS# 635-65-4

Bilirubin, Promotion Season Now in Store and Free Sample for Testing with Factory Price
  • Appearance: Orange to reddish brown crystalline powder
  • Assay: 99. 0%min
  • Packaging: 10kg/drum
  • Sample: Available

Quality Control of Bilirubin

Chemical Structure
Bilirubin CAS# 635-65-4
Packing of Bilirubin

Description of Bilirubin

Bilirubin (formerly referred to as haematoidin) is a yellow compound that occurs in the normal catabolic pathway that breaks down heme in vertebrates. This catabolism is a necessary process in the body’s clearance of waste products that arise from the destruction of aged red blood cells. First the hemoglobin gets stripped of the heme molecule which thereafter passes through various processes of porphyrin catabolism, depending on the part of the body in which the breakdown occurs. For example, the molecules excreted in the urine differ from those in the feces. The production of biliverdin from heme is the first major step in the catabolic pathway, after which the enzyme biliverdin reductase performs the second step, producing bilirubin from biliverdin.
Bilirubin is excreted in bile and urine, and elevated levels may indicate certain diseases. It is responsible for the yellow color of bruises and the yellow discoloration in jaundice. Its subsequent breakdown products, such as stercobilin, cause the brown color of feces. A different breakdown product, urobilin, is the main component of the straw-yellow color in urine.
It has also been found in plants.

Basic Info of Bilirubin

Basic Info

Chemical Name



Cholerythrin;hemetoidin;21H-Biline-8,12-dipropanoic acid, 2,17-diethenyl-1,10,19,22,23,24-hexahydro-3,7,13,18-tetramethyl-1,19-dioxo-;Bilirubin;Biliyubin;Expand



Molecular Formula


Molecular Weight






Safety Info



Safety Statements

S22; S24/25; S36; S26

HS Code


WGK Germany


Risk Statements


Hazard Codes




Appearance & Physical State

light orange to brown crystalline powder


1.374 g/cm3

Boiling Point

925.2ºC at 760 mmHg

Melting Point


Flash Point



Stable. Refrigerate.

Storage Condition


Numbering system




Share on facebook
Share on twitter
Share on linkedin

What is Bilirubin?

With the progress of science and technology and the development of society, chemical products have invariably permeated our daily lives, in medicine, food, cosmetics, electronics, industry, and other areas, becoming an essential part of our lives. One such product is Bilirubin which has developed particularly rapidly in recent years. Do you know about Bilirubin?


The official answer:Bilirubin is a type of bile pigment and is the main pigment in human bile. Bilirubin is the main metabolite of iron porphyrin compounds in the body, which is toxic and can cause irreversible damage to the brain and nervous system, but also functions as an antioxidant and can inhibit the oxidation of linoleic acid and phospholipids. Bilirubin is an important basis for the clinical determination of jaundice and an important indicator of liver function.

What’s the application of Bilirubin?

  1. Bilirubin has a variety of pharmacological effects and is the main raw material for the manufacture of artificial bilirubin. Pharmacological experiments have proved that it has a good inhibitory effect on W256 tumor, and the inactivation rate and inhibition index of B encephalitis virus is 1 to 1.5 times higher than that of deoxycholic acid and bile acid; it also Chemicalbook is an effective therapeutic drug for liver diseases, which has the effect of proliferating new cells without destroying liver tissues, and can treat serum hepatitis and liver sclerosis, etc. In addition, bilirubin has Sedative, analgesic, antipyretic and hypotensive. Promote red blood cell neogenesis and other effects.
  2. Used in the determination of bilirubin in artificial cowberry, preparation of artificial cowberry, and biochemical research.
  3. Biochemical research. Analytical chemistry. Biochemical studies. Synthetic Oxaliplatin. Antioxidant protects membrane phospholipids from oxidation by hydrogen peroxide radicals. Protects neurons from oxidative damage even at nanomolar concentrations.
  4. Antioxidant, protects membrane phospholipids from oxidation by hydrogen peroxide radicals.


Sincere to the customer and in good faith of quality is our forever followed motto. It’s the basement to be a human and do business. We take all responsibility for our products and service sincerely. We are a company integrating R&D, production, and sales. The design, research, and development of pharmaceutical intermediates including more than 330 kinds of pharmaceutical intermediates such as Anti-infectives, Cardiovascular and Cerebrovascular Systems, Digestive System, Santi-tumor, Nervous System, Geriatric Drugs, and Gynecological Drugs. At the same time, we have more than 4,000 factories in strategic cooperation with nearly 50,000 chemical products, so we can provide you with a one-stop purchasing service, which greatly saves customers’ procurement costs and time.

Hello, I’m Pew Ni, the chemical products one-stop solution expert.

Hi, I‘m Peter Ni, the founder of Sincere-Chem, I’ve been running a company in China that exporting chemicals, pharmaceuticals, and intermediates for over 70 countries now. And a range of 50,000 products with the best quality and competitive price to meet your different purchasing needs.

CEO Email:

CEO Phone Number:
+86-188-6575 9396

CEO WhatsApp:
+86-188-6575 9396

Request A Free Quote

Keywords of Bilirubin

Bilirubin, 635-65-4 , buy Bilirubin, Bilirubin supplier, purchase Bilirubin, Bilirubin cost, Bilirubin manufacturer, order Bilirubin, high purity Bilirubin.


United Kingdom Giles
United Kingdom Giles
Read More
Peter has been my partner for many years, we met at the Shanghai CPHI Fair in 2014, for the first time I didn't have much interest in Peter's products because our company had a stable supplier. Although we didn't work together, Peter would often send me important news and interesting trend information about the industry, so we became good friends, even though I didn't place any orders with him during this time, even if it was a sample order. In September 2016, our original supplier was unable to provide us with the quality and delivery guarantees we needed, so I first thought of Peter and his company. Until now, we have maintained a very good personal friendship in addition to a steady business relationship.
India Shikhar
India Shikhar
Read More
In all my years of sourcing from China, I first time to found that working with Sincere Chemical was so good, they helped me with all the production and delivery as well as a lot of technical expertise, which saved me a lot of time. When I first approached Peter for a quotation for Optical Brightener, he made me a detailed quotation with not only prices but also foreign trade details, company profile, company strengths, R&D capabilities, production capacity, packaging methods, raw material control, environmental protection, and much more. This information was a very important reference for me in making purchasing decisions. Sincere Chemical is a trustworthy supplier and I believe our business will grow from strength to strength!
Korea Kim
Korea Kim
Read More
Hi, I'm Kim, I'm Peter's partner and although I don't like him very much (because he never gives me more money for my prices, hahaha) I'm still willing to write him customer feedback. As an international buyer, I have to deal with a lot of things every day and my inbox is often full of development letters. It's a lot of junk and meaningless pleasantries, which I don't like that much, but Peter's emails always give me a better understanding of the product and the industry. I am also very pleased with his work ethic, and I am very happy with his work every time I work with him, not only in providing quotations but also in facilitating all the details of my work so that I can concentrate more on other things, so he is the best supplier for me. Although his prices are not the lowest among all suppliers, his products give me the greatest peace of mind.
USA Franklin
USA Franklin
Read More
Sincere Chemical team visited our USA factory in the year of 2017. We think highly of cooperation with them. We thanked you for the past excellent orders and best product quality. We also talked about some new products for future orders. We will be still in strategic cooperation in the future and help each other.
Canada Kate
Canada Kate
Read More
I just got the product. The quality is awesome. I’m very happy. Hope to place soon a new order in your company. Also wish for our future business.
Read More
Sincere Chemical is a reliable and professional company. Not only on exporting but also their professional team service. Their team gave us so many suggestions for our new project. We are really satisfied with their awesome service and best product quality. Sincere-Chem’s vendor code is 51465768 in our cooperated vendor list system.
Read More
I have visited Sincere Chemical company in the year 2018. Their company can be considered as one of the most professional, customer-focused, and product quality-driven companies that I have worked with in recent years.
Brazil Aline
Brazil Aline
Read More
We are a pharmaceutical products manufacturer in Brazil. I’m happy to cooperate with Sincere Chemical especially cooperate with Peter. Peter is patient and friendly. I’m satisfied with his 24*7 hours service. We are not only cooperators but also best friends with each other.
Mexico Gonzalo
Mexico Gonzalo
Read More
Great service and very supportive. This is my first order and I feel fortunate to be with Peter and his company. Product received was the right good quality product, so my review is more related with the quality, service and shipment. Thank you for sending. next time I will order again. Good supplier...