Butene, also known as butylene, is an alkene with the formula C 4 H 8. The word butene may refer to any of the individual compounds. They are colourless gases that are present in crude oil as a minor constituent in quantities that are too small for viable extraction.

Butilen, còn được gọi là buten, là một hợp chất hữu cơ thuộc nhóm anken với công thức hóa học C 4 H 8. Có bốn đồng phân chính của butilen: 1-butene, 2-butene (trans-2-butene và cis-2-butene), và isobutene. Đây là một chất khí không màu, có mùi đặc trưng và là nguyên liệu quan trọng trong ngành công nghiệp hóa chất.

A butén, más néven butilén az alkének közé tartozó telítetlen szénhidrogén, képlete C 4 H 8. A butén szó bármelyik izomert jelentheti. Színtelen gázok, a kőolajban kis mennyiségben előfordulnak, de onnan kinyerésük nem gazdaságos, ezért az olajfinomítás során hátramaradt hosszabb láncú szénhidrogének katalitikus krakkolásával állítják elő.

1-Butene (IUPAC name: But-1-ene, also known as 1-butylene) is the organic compound with the formula CH 3 CH 2 CH=CH 2. It is a colorless gas, but easily condensed to give a colorless liquid. It is classified as a linear alpha-olefin (terminal alkene). [2] . It is one of the isomers of butene (butylene). It is a precursor to diverse products.

2-butene appears as a colorless liquefied petroleum gas. Asphyxiate gas. Flammability limits in air 1.8-9.7% by volume. See also: Isobutylene (annotation moved to). but-2-ene. Computed by Lexichem TK 2.7.0 (PubChem release 2021.10.14) InChI=1S/C4H8/c1-3-4-2/h3-4H,1-2H3. Computed by InChI 1.0.6 (PubChem release 2021.10.14)

butene, any of four isomeric compounds belonging to the series of olefinic hydrocarbons. The chemical formula is C 4 H 8. The isomeric forms are 1-butene, cis - 2-butene, trans -2-butene, and isobutylene. All four butenes are gases at room temperature and pressure.

Butylene glycol is one of the most popular ingredients used in cosmetic and skin care products. It is colorless and viscous with the chemical formula C 4 H 10 O 2. It comes in a liquid form and acts as a humectant, emollient, and solvent in formulations.

Isobutylene is a colorless gas with a faint petroleum-like odor. For transportation it may be stenched. It is shipped as a liquefied gas under its own vapor pressure. Contact with the liquid can cause frostbite. It is easily ignited. Its vapors are heavier than air and a flame can flash back to the source of leak very easily.

- Định nghĩa: Buten (C 4 H 8) là một hyđrocacbon không no nằm trong dãy đồng đẳng của alkene. Buten là chất khí, không màu, nhẹ hơn nước và tan tốt trong dầu mỡ. - Công thức phân tử: C 4 H 8. - Công thức cấu tạo: CH 2 =CH-CH 2 -CH 3. - Đồng phân: + Đồng phân cấu tạo C 4 H 8 trở lên có đồng phân mạch cacbon và đồng phân vị trí liên kết đôi.

Butane-1,3-diol is a butanediol compound having two hydroxy groups in the 1- and 3-positions. It is a butanediol and a glycol. 1,3-Butanediol is found in pepper (c. annuum). 1,3-Butanediol is a solvent for flavouring agents 1,3-Butanediol is an organic chemical, an alcohol.