What is "trimethylpentane"

n. (context organic compound English) Any of several isomers of octane having three methyl groups attached to a pentane chain; especially isooctane, used as a standard for octane number

Trimethylpentane may refer to:

• 2,2,3-Trimethylpentane
• 2,2,4-Trimethylpentane
• 2,3,3-Trimethylpentane
• 2,3,4-Trimethylpentane

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