Isobutane, also known as i-butane, 2-methylpropane or methylpropane, is a chemical compound with molecular formula HC (CH 3) 3. It is an isomer of butane. Isobutane is a colorless, odorless gas. It is the simplest alkane with a tertiary carbon atom.

异丁烷，又名2-甲基丙烷，是一种有机化合物，化学式是C4H10，常温常压下为无色可燃性气体。 微溶于水，可溶于乙醇、乙醚等，与空气形成爆炸性混合物，主要存在于天然气、炼厂气和裂解气中，经物理分离获得，主要用于与异丁烯经烃化制异辛烷，作为汽油辛烷值的改进剂，也可用作冷 …

Isobutane | C4H10 | CID 6360 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more.

2025年2月27日 · 2-Methylpropane (isobutane), C4H10, a flammable gas, occurs in small quantities in natural gas and crude oil. It has been detected in urban atmospheres at concentrations of 44–74 ppb. It also evolves from natural sources and has been measured in diesel exhaust at 1.4–11 ppm and in cigarette smoke at 10 ppm.

isobutane . 2-methylpropane . Molecular Model ... C 4 H 10. isobutane . 2-methylpropane . Molecular Model Application loaded. ...

Other names: Propane, 2-methyl-; Trimethylmethane; 1,1-Dimethylethane; 2-Methylpropane; iso-C4H10; i-Butane; UN 1969; R 600a; tert-Butane; A 31; Methylpropane; A 31 (hydrocarbon) Permanent link for this species. Use this link for bookmarking this species for future reference. Information on this page: Notes; Other data available:

ChemSpider record containing structure, synonyms, properties, vendors and database links for Isobutane, 75-28-5, 1730720, NNPPMTNAJDCUHE-UHFFFAOYSA-N

The result is the isomer 2-methylpropane (also called isobutane), which is a branched-chain alkane with the same formula as butane, (C 4 H 10). However, it is a different molecule with a different name and different chemical properties. A side-by-side comparison of these two molecules is shown in the below figure.

2020年12月31日 · ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Butane, isomers. See annual publication for most recent information. Fuke, C., et al.: A fatal case considered to be due to cardiac arrhythmia associated with butane inhalation. Leg. Med. (Tokyo) 4 (2): 134-138, 2002.

2-methylpropane, also known as isobutane, is a branched-chain alkane with the molecular formula C₄H₁₀. It is an isomer of n-butane, where the methyl group (-CH₃) is attached to the second carbon atom of the main chain, creating a branched structure.