2,3,5-trimethyl-2,5-cyclohexadien-1,4-dione

Name	2,3,5-trimethyl-p-benzoquinone
Synonyms	TRIMETHYLQUINONE 2,3,5-Trimethylquinone 2,3,5-Trimethylbenzoquinone 2,3,5-trimethyl-p-benzoquinon 2,3,5-trimethyl-p-benzoquinone 2,3,5-Trimethyl-1,4-benzoquinone 2,3,5-trimethyl-2,5-cyclohexadien-1,4-dione 2,3,5-trimethylcyclohexa-2,5-diene-1,4-dione 2,3,5-Trimethyl-2,5-cyclohexadiene-1,4-dione 2,5-Cyclohexadiene-1,4-dione,2,3,5-triMethyl-
CAS	935-92-2
EINECS	213-309-2
InChI	InChI=1/C9H10O2/c1-5-4-8(10)6(2)7(3)9(5)11/h4H,1-3H3

Molecular Formula	C9H10O2
Molar Mass	150.17
Density	0.9820 (rough estimate)
Melting Point	36 °C
Boling Point	211.72°C (rough estimate)
Flash Point	77.3°C
Solubility	soluble in Acetone
Vapor Presure	0.149mmHg at 25°C
Appearance	powder to crystal
Color	Light yellow to Yellow to Orange
Storage Condition	2-8°C
Refractive Index	1.5470 (estimate)
Physical and Chemical Properties	Yellow crystals (water) or needle crystals (ether). Melting point 32 ℃, boiling point 53 ℃ /53.3Pa, volatilization with water vapor.

EPA chemical substance information	information provided by: ofmpeb.epa.gov (external link)
Use	an intermediate of vitamin E acetate.
production method	sulfonation of 1,2, 4-trimethylbenzene with concentrated sulfuric acid to produce 2,4, 5-trimethylbenzenesulfonic acid, then nitrated with potassium nitrate and concentrated sulfuric acid to give potassium 2,4, 5-trimethyl-3, 6-dinitrate, which is reduced to 2,3, 5-trimethyl-p-phenylenediamine dihydrochloride was further oxidized with sulfuric acid and sodium dichromate to obtain the product.

Last Update：2024-04-10 22:29:15

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2,3,5-trimethyl-2,5-cyclohexadien-1,4-dione

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