1.0 2026-04-03 08:07:04 UTC 2026-08-22 17:41:42 UTC 2-Butyne SmallMolecule 2-Butyne is an organic compound with the chemical formula C4H6 and an average molecular weight of 54.09 g/mol. 2-Butyne belongs to the acetylenes, a subclass of unsaturated hydrocarbons within the organic compounds. This substance is found in or released from 30 recorded sources across several categories. Within electrical and electronic equipment, it is associated with amplifiers, antennas, coils, communication cables or conductors, adjustable resistors, and 16 additional sources. In the realm of household cleaning and consumer products, 2-Butyne is linked to soap detergents, bleaching agents, perfumes within detergents and soaps, cigar cigarettes, and tobacco smoke filters. Additionally, the compound is present in food, food processing, and cookware, specifically in processing meats, food preservation, and fermentation processes for beer. It is also found in building and construction materials, such as tents or canopies. 1361340 2-Butyne 207-962-2 503173 acetylene, dimethyl- But-2-yne butyne, 2- CH3C.$.CCH3 Crotonylene Crotonylene [UN1144] [Flammable liquid] Dimethyl acetylene Dimethylacetylene Dimethylacetylene, Crotonylene EINECS 207-962-2 InChI=1/C4H6/c1-3-4-2/h1-2H MFCD00009275 UN 1144 UNII-LKE6D3018E UNII:LKE6D3018E [503-17-3] C4H6 54.092 54.04695 but-2-yne 2-butyne 503-17-3 CC#CC InChI=1S/C4H6/c1-3-4-2/h1-2H3 XNMQEEKYCVKGBD-UHFFFAOYSA-N Organic compounds Hydrocarbons Unsaturated hydrocarbons Acetylenes Terminal alkynes Unsaturated aliphatic hydrocarbons Aliphatic acyclic compound Monosubstituted alkyne Unsaturated aliphatic hydrocarbon Aliphatic acyclic compounds Detected and Not Quantified logp 1.5 logp 1.70 ALOGPS logs -1.53 ALOGPS solubility 1.60e+00 g/l ALOGPS logp 1.83 ChemAxon iupac but-2-yne ChemAxon average_mass 54.092 ChemAxon mono_mass 54.04695 ChemAxon smiles CC#CC ChemAxon formula C4H6 ChemAxon inchi InChI=1S/C4H6/c1-3-4-2/h1-2H3 ChemAxon inchikey XNMQEEKYCVKGBD-UHFFFAOYSA-N ChemAxon polar_surface_area 0 ChemAxon refractivity 19.57 ChemAxon polarizability 7.09 ChemAxon rotatable_bond_count 0 ChemAxon acceptor_count 0 ChemAxon donor_count 0 ChemAxon physiological_charge 0 ChemAxon formal_charge 0 ChemAxon #<HealthEffect::ActiveRecord_Associations_CollectionProxy:0x00007f3bb3d94068> 10419 9990