(+)-α-tocopherol CAS# 59-02-9

(+)-α-tocopherol, Promotion Season Now in Store and Free Sample for Testing with Factory Price
  • Appearance: Brownish Red Oily Liquid
  • Assay: 99. 0%min
  • Packaging:200kg/ drum
  • Sample: Available

Quality Control of (+)-α-tocopherol

Chemical Structure
(+)-α-tocopherol CAS# 59-02-9
Packing of (+)-α-tocopherol

Description of (+)-α-tocopherol

  • α-Tocopherol is a type of tocopherol or vitamin E. It has E number “E307”.
    α-Tocopherol is a form of vitamin E that is preferentially absorbed and accumulated in humans. The measurement of “vitamin E” activity in international units (IU) was based on fertility enhancement by the prevention of spontaneous abortions in pregnant rats relative to alpha-tocopherol.
    There are three stereocenters in alpha-tocopherol, so this is a chiral molecule. The eight stereoisomers of alpha-tocopherol differ in the arrangement of groups around these stereocenters. In the image of RRR-alpha-tocopherol, all three stereocenters are in the R form. However, if the middle of the three stereocenters were changed (so the hydrogen was now pointing down and the methyl group pointing up), this would become the structure of RSR-alpha-tocopherol. RSR-alpha-tocopherol and RRR-alpha-tocopherol are diastereomers of each other. These stereoisomers can also be named in an alternative older nomenclature, where the stereocenters are either in the d or l form.
  • 1 IU of tocopherol is defined as ⅔ milligrams of RRR-alpha-tocopherol (formerly named d-alpha-tocopherol or sometimes ddd-alpha-tocopherol). 1 IU is also defined as 1 milligram of an equal mix of the eight stereoisomers, which is a racemic mixture called all-rac-alpha-tocopheryl acetate. This mix of stereoisomers is often called dl-alpha-tocopheryl acetate, even though it is more precisely dl,dl,dl-alpha-tocopheryl acetate). However, 1 IU of this racemic mixture is not now considered equivalent to 1 IU of natural (RRR) α-tocopherol, and the Institute of Medicine and the USDA now convert IU’s of the racemic mixture to milligrams of equivalent RRR using 1 IU racemic mixture = 0.45 “milligrams α-tocopherol”.

Basic Info of (+)-α-tocopherol

Basic Info

Chemical Name



(+)-alpha-tocopherol;(+)-α-Tocopherol;D-α-Tocopherol;2H-1-Benzopyran-6-ol, 3,4-dihydro-2,5,7,8-tetramethyl-2-(4,8,12-trimethyltridecyl)-, [2R-[2R*(4R*,8R*)]]-;



Molecular Formula


Molecular Weight






Safety Info



Safety Statements


HS Code


WGK Germany


Risk Statements


Hazard Codes



Appearance & Physical State

light yellow liquid



Boiling Point

200-220ºC (0.07501 mmHg)

Melting Point


Flash Point


Refractive Index

n20/D 1.505(lit.)


Stable. Combustible. May be sensitive to light and air. Incompatible with strong oxidizing agents.

Storage Condition


Vapor Pressure

4.59E-10mmHg at 25°C

Numbering system

MDL number



Share on facebook
Share on twitter
Share on linkedin

What is (+)-α-tocopherol?

  • 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 (+)-α-tocopherol which has developed particularly rapidly in recent years. Do you know about (+)-α-tocopherol?
  • The official answer: (+)-α-tocopherol is a brownish red or transparent light yellow oily liquid with a mild, peculiar odor and taste. It is easily soluble in ethanol, acetone, ether, chloroform, or vegetable oil, and almost insoluble in water. The boiling point is high (250℃), stable to heat. It turns dark red when oxidized by air and light. It has no heat and does not participate in human metabolism.

What’s the application of (+)-α-tocopherol?

  • (+)-α-tocopherol is a potent antioxidant that is capable of protecting polyunsaturated fatty acids from oxidative breakdown. This vitamin also functions to enhance vitamin A use. Although several other physiological actions have been suggested, to date no unifying concept exists to explain these actions. (+)-α-tocopherol (α-(+)-α-tocopherol) is found in a variety of foodstuffs, the richest sources being plant oils, including wheat germ and rice, and the lipids of green leaves.
  • Physiological functions and effects: (+)-α-tocopherol (VE) includes α, β, δ, γ (+)-α-tocopherols, and corresponding tocotrienols and other 8 substances, belongs to the fat-soluble vitamin, has a variety of important physiological functions such as anti-free radicals, anti-aging, prevention of skin keratinization, improve the physical immune function and cellular immune function of humans and animals, prevention of cardiovascular and cerebrovascular diseases, etc. VE has two major sources, (+)-α-tocopherol and synthetic VE. (+)-α-tocopherol is a mixed (+)-α-tocopherol containing a variety of monomers, but (+)-α-tocopherol is better than synthetic VE both in terms of physiological activity and antioxidant capacity, and (+)-α-tocopherol has no toxic side effects on humans, so in the food, nutritional care products, and cosmetics industry, (+)-α-tocopherol is favored by the majority of consumers.
  • Deficiency
  • Hemolytic anemia. Because very little (+)-α-tocopherol is delivered to the newborn through the placenta, the plasma of newborns or premature infants will have low levels of (+)-α-tocopherol. If the mother is deficient in (+)-α-tocopherol, resulting in insufficient (+)-α-tocopherol in the child will cause the child’s blood cells to break easily and anemia occurs, called hemolytic anemia, and sometimes indirectly cause yellow bile.
  •  Gastrointestinal discomfort, impotence, edema, skin diseases, muscle weakness.
  •  Chronic fat malabsorption.
  •  Hemolysis, my uric acid, brown pigment precipitation in smooth muscle.
  •  Cystic fibrosis, thrombocytosis, hair loss, dry hair.
  •  After years of (+)-α-tocopherol deficiency in adults, increased lysis of red blood cells will appear.
  •  Menstrual disorders, cold hands, and feet due to impaired peripheral blood circulation, frostbite, etc.
  •  Cold sensation syndrome.


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: inquiry@sincerechemical.com

CEO Phone Number:
+86-188-6575 9396

CEO WhatsApp:
+86-188-6575 9396

Request A Free Quote

Keywords of (+)-α-tocopherol

(+)-α-tocopherol, 59-02-9 , buy (+)-α-tocopherol, (+)-α-tocopherol supplier, purchase (+)-α-tocopherol, (+)-α-tocopherol cost, (+)-α-tocopherol manufacturer, order (+)-α-tocopherol, high purity (+)-α-tocopherol


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...