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2-Hexenedioic acid

hexenedioic acid
Names
	IUPAC name (E)-hex-2-enedioic acid
	Other names Hex-2-enedioic acid; Trans-2,3-dehydroadipic acid
Identifiers
CAS Number	4440-68-0;
3D model (JSmol)	Interactive image;
ChemSpider	9052499;
PubChem CID	10877230;
	InChI Key: HSBSUGYTMJWPAX-HNQUOIGGSA-N;
	SMILES O=C(O)C=CCCC(=O)O;
Properties
Chemical formula	C6H8O4
Molar mass	144.126 g·mol−1
Appearance	White crystals
Odor	Odorless
Density	1.305±0.06 g/cm3
Melting point	210 °C (410 °F; 483 K)
Boiling point	387.6 °C (729.7 °F; 660.8 K)
Acidity (pKa)	4.27±0.1
Related compounds
Related dicarboxylic acids	glutaric acid; pimelic acid
Related compounds	hexanoic acid; adipic acid dihydrazide; hexanedioyl dichloride; hexanedinitrile; hexanediamide
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

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