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A closed loop of bonded atoms in a chemical structure, for example, benzene or cyclohexane.

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行业/领域：化学
类别有机化学
Company: McGraw-Hill
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Arbitrary designation of certain compounds as closed, circular structures, as in the six-carbon benzene ring; common rings have four, five, and six members, either carbon or some ...

сақина изомеризмі

化学; 有机化学

A type of geometrical isomerism in which bond lengths and bond angles prevent the existence of the trans structure if substituents are attached to alkenic carbons which are part ...

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化学; 有机化学

C 20 H 30 O 2 A tricyclic, crystalline acid obtained from rosin; used in making esters for plasticizers.

альфин катализаторы

化学; 有机化学

A catalyst derived from reaction of an alkali alcoholate with an olefin halide; used to convert olefins (for example, ethylene, propylene, or butylenes) into polyolefin polymers.

бензотиазоль

化学; 有机化学

C 6 H 4 SCHN A thiazole fused to a benzene ring; can be made by ring closure from o-amino thiophenols and acid chlorides; derivatives are important industrial products.

целлюлозалық

化学; 有机化学

Any of the derivatives of cellulose, such as cellulose acetate.

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аланил

化学; 有机化学

The radical CH 3 CHNH 2 CO_; occurs in, for example, alanyl alanine, a dipeptide.

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