2 3 Butanedione has several isomerisms

There should be at least 14 more, and below are the English names of 14 types.

crotonic acid

cyclopropanecarboxylic acid1,3-butadiene diepoxidegamma-butyrolactone

2-butyne-1,4-diol

beta-butyrolactone

methacrylic acid

methyl 2-propenoate

vinylacetic acid

vinyl acetate

3,4-epoxytetrahydrofuran2-(oxiran-2-yl)oxirane2z)-2-butenoic acid

dihydrofuran-3(2h)-one

Summary. CH3CH2CH2C(CH3)COOH This is the chemical structure of 2-methyl-3-butanuvate (isoamerone ketonate). Where, CH3 represents a methyl group, CH2 represents a methylene group, CH2CH2 represents an ethyl group, and C(CH3)COOH represents a butyl carboxylic acid group.

Chemical structure of 2-methyl-3-butanuconic acid.

CH3CH2CH2C(CH3)COOH This is the chemical structure of 2-methylgin-3-butanuvate (isoamyl kerate). Among them, Fengliangshen CH3 represents a methyl group, CH2 represents a methylene group, CH2CH2 represents an ethyl group, and C(CH3)COOH represents a butyl slag transport alkyl carboxylic acid group.

Trans-decahydronaphthalene.

Trans-decahydronaphthalene (trans-decahydronaphthalene) is a socks compound with the molecular formula C10H18. It is a colorless to yellow liquid that is often used as a solvent or reaction intermediate.

Are you sure you're right?

According to this obvious structure of yours, it should look like this:

But this structure should be named "3-methyl-2-pentanone".

3-hydroxy-2-butanone, English name: acetyl. Nature:

It has a strong creamy, fatty, butter-like aroma and a pleasant milky aroma when highly diluted. It can be miscible with ethanol, water, glycerin, and insoluble in fatty oils and carbon light compounds. Usage:

It is used for the preparation of milk-flavored, meat-flavored, strawberry-flavored flavors, and can also be directly used in dairy products, and is an extremely important variety in wine flavoring.

D Question Analysis: A Butanedione is a compound containing carbon and belongs to organic matter. However, it does not belong to polymer hail arubaries.

This is incorrect. b Diacetone contains oxygen. This is incorrect.

c The mass fraction next to the carbon source in butanedione is the largest, and this item is incorrect. d The mass fraction of hydrogen in diacetone is <>

100%=, this is correct. Therefore, option D should be selected.