Metabolomics Structure Database

MDLMOL SDF CSV TSV

MW REGNO:	50607
Common Name:	4-hydroxybut-2-ynal
Systematic Name:	4-hydroxybut-2-ynal
RefMet Name:	4-Hydroxybut-2-ynal
Synonyms:	4-hydroxy-2-butynal [PubChem Synonyms]
Exact Mass:	84.0211 (neutral)    Calculate m/z: (Choose adduct) [M+H]+ [M+H-H2O]+ [M.]+ [M+2H]2+ [M+3H]3+ [M+4H]4+ [M+K]+ [M+2K]2+ [M-H+2K]+ [M+Na]+ [M+2Na]2+ [M-H+2Na]+ [M+Li]+ [M+2Li]2+ [M+NH4]+ [M-H]- [M-2H]2- [M-3H]3- [M-4H]4- [M+Cl]- [M+OAc]- [M+HCOO]- M(neutral)
Formula:	C4H4O2
InChIKey:	QAPQYLWHUDXNHY-UHFFFAOYSA-N
ClassyFire superclass:	Organic oxygen compounds [C0004603]
ClassyFire class:	Organooxygen compounds [C0000323]
ClassyFire subclass:	Carbonyl compounds [C0001831]
ClassyFire direct parent:	Ynals [C0002437]
SMILES:	C(#CCO)C=O
Studies:	Available studies (via RefMet name)

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Calculated physicochemical properties (?):

Heavy Atoms:	6
Rings:	0
Aromatic Rings:	0
Rotatable Bonds:	0
van der Waals Molecular volume:	87.42 Å3 molecule-1
Toplogical Polar Sufrace Area:	37.30 Å2 molecule-1
Hydrogen Bond Donors:	1
Hydrogen Bond Acceptors:	2
logP:	-0.53
Molar Refractivity:	21.42
Fraction sp3 Carbons:	0.25
sp3 Carbons:	1

References

LIPID MAPS classification: "Update of the LIPID MAPS comprehensive classification system for lipids", Fahy E, Subramaniam S, Murphy RC, Nishijima M, Raetz CR, Shimizu T, Spener F, van Meer G, Wakelam MJ, and Dennis EA, J. Lipid Res. (2009) 50: S9-S14. DOI: 10.1194/jlr.R800095-JLR200
ClassyFire classification: "ClassyFire: automated chemical classification with a comprehensive, computable taxonomy", Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS, J. Cheminformatics (2016) 8:61. DOI: 10.1186/s13321-016-0174-y