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Electronical chemicals

4,4''-Diiodo-p-terphenyl

CAS number

19053-14-6

Molecular formula C18H12I2
Product name 4,4''-Diiodo-p-terphenyl
Molecular Structure

Appearance:White crystal powder

Density:1.66g/cm3

Boiling Point:316.9ºC at 760mmHg

Melting Point:328ºC

Flash Point:145.5ºC

Refractive Index:1.692

Vapor Pressure:1.16E-09mmHg at 25°C


CAS No.19053-14-6 is an organic compound commonly known as dl-α-tocopherol, which is a form of Vitamin E. It is a yellowish-brown viscous oil with a characteristic odor and a slightly bitter taste. It is insoluble in water and miscible with most organic solvents.


dl-α-tocopherol has a variety of applications in the chemical industry. It is used as an antioxidant in food and cosmetic products, as a stabilizer in polymers, and as an ingredient in many pharmaceuticals. It is also used as a precursor for the synthesis of other compounds.


dl-α-tocopherol has strong antioxidant effects and is a major source of Vitamin E. It can help protect the body from oxidative damage caused by free radicals, which can lead to a variety of diseases. It also helps to reduce inflammation and can aid in the healing of wounds. It plays an important role in maintaining healthy skin, hair and nails.


dl-α-tocopherol is found naturally in many foods, such as vegetable oils, wheat germ, eggs, nuts, and leafy green vegetables. It can also be obtained from dietary supplements.


The safety of dl-α-tocopherol has been extensively studied, and it is generally considered to be safe when taken in the recommended amounts. However, as with any dietary supplement, it should be used with caution and only as directed by a healthcare professional.


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