2-Bromobutane

September 2025 changed changed 477212748lu 2-Bromobutane Structural formula of (R)-2-Bromobutane.svg Structural formula of (R)-2-Bromobutane skin-invert Structural formula of (S)-2-Bromobutane.svg Structural formula of (S)-2-Bromobutane skin-invert 2-Bromobutane2-bromob isutane - Compound Summary https://pubchem.ncbi.nlm.nih.gov/compound/6554 PubChem Compound National Center for Biotechnology Information 17 June 2012 USA 26 March 2005 sec-Butylbromide 78-76-2 correct CAS 5787-33-7 R 5787-32-6 S 2-BBs-BBSBBs-BuBrsBuBrsBuBr correct FDA SSI829JO4W 1P61Z14PRH R 2AL1MZU0XA S 6554 637147 R 12236140 S 6306 correct chemspider 552796 changed chemspider R 201-140-7 2339 2-bromobutane 156276 correct EBI EJ6228000 505949 CCC(C)Br CC[C@@H](C)Br R CC[C@H](C)Br S 1S/C4H9Br/c1-3-4(2)5/h4H,3H2,1-2H3 correct chemspider UPSXAPQYNGXVBF-UHFFFAOYSA-N correct chemspider 4 9 1 Colourless liquid 1.255 g mL−1 160.50 364 2.672 1.437 −156 kJ mol−1 −2.706–−2.704 MJ mol−1 flame DANGER 225 210 21 alkanes n-Propyl bromide 2-Bromopropane tert-Butyl bromide 1-Bromobutane 1-Bromohexane 2-Bromohexane 2-Bromobutane is an isomer of 1-bromobutane. Both compounds share the molecular formula C4H9Br. 2-Bromobutane is also known as sec-butyl bromide or methylethylbromomethane. It is a colorless liquid with a pleasant odor. Because it contains bromine, a halogen, it is part of a larger class of compounds known as alkyl halides. Because the carbon atom connected to the bromine is connected to two other carbons the molecule is referred to as a secondary alkyl halide. 2-Bromobutane is chiral and thus can be obtained as either of two enantiomers designated as (R)-(−)-2-bromobutane and (S)-(+)-2-bromobutane. 2-Bromobutane is relatively stable, but is toxic and flammable. When treated with a strong base, it is prone to undergo an E2 reaction, which is a bimolecular elimination reaction, resulting in (predominantly) 2-butene, an alkene (double bond). 2-Bromobutane is an irritant, and harmful if ingested. It can irritate and burn skin and eyes. References Category:Bromoalkanes Category:Sec-Butyl compounds