Butyl group | 食品添加物合法業者資訊網
Thebutylgroup'scarbonthatisconnectedtotherest(R)ofthemoleculeiscalledtheRIorR-primecarbon.Theprefixessec(fromsecondary)andtert(from ...
Chemical group (−C₄H₉) derived from butane
"Butyl" redirects here. For the synthetic rubber, see Butyl rubber.In organic chemistry, butyl is a four-carbon alkyl radical or substituent group with general chemical formula
−C4H9, derived from either of the two isomers (n-butane and isobutane) of butane.The isomer n-butane can connect in two ways, giving rise to two "-butyl" groups:
If it connects at one of the two terminal carbon atoms, it is normal butyl or n-butyl: −CH2−CH2−CH2−CH3 (preferred IUPAC name: butyl) If it connects at one of the non-terminal (internal) carbon atoms, it is secondary butyl or sec-butyl: −CH(CH3)−CH2−CH3 (preferred IUPAC name: butan-2-yl)The second isomer of butane, isobutane, can also connect in two ways, giving rise to two additional groups:
If it connects at one of the three terminal carbons, i...丁基 | 食品添加物合法業者資訊網
乙酸第二丁酯 | 食品添加物合法業者資訊網
sec-butyl | 食品添加物合法業者資訊網
sec-butyl acetate | 食品添加物合法業者資訊網
Butyl group | 食品添加物合法業者資訊網
sec | 食品添加物合法業者資訊網
sec-butyl group (CHEBI:45557) | 食品添加物合法業者資訊網
Illustrated Glossary of Organic Chemistry | 食品添加物合法業者資訊網
2-sec-Butyl-3-methoxypyrazine 24168-70 | 食品添加物合法業者資訊網
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