Homoaconitic acid

Homoaconitic acid
	cis-Homoaconitic acid
	trans-Homoaconitic acid
Names
	IUPAC names (1Z)-1-Butene-1,2,4-tricarboxylic acid; (1E)-1-Butene-1,2,4-tricarboxylic acid
	Other names Homo-cis-aconitate; Homo-trans-aconitate
Identifiers
CAS Number	13366-20-6 ; 7279-64-3 (Z) ; 7279-63-2 (E) ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:17516;
ChemSpider	4444242 (Z);
KEGG	C04002;
PubChem CID	5280640 (Z);
UNII	BPE4V564XP ;
CompTox Dashboard (EPA)	DTXSID201336349 ;
	InChI InChI=1S/C7H8O6/c8-5(9)2-1-4(7(12)13)3-6(10)11/h3H,1-2H2,(H,8,9)(H,10,11)(H,12,13)/b4-3- Key: BJYPZFUWWJSAKC-ARJAWSKDSA-N;
	SMILES O=C(O)C(=CC(=O)O)CCC(=O)O;
Properties
Chemical formula	C7H8O6
Molar mass	188.135 g·mol−1
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Homoaconitatic acid (homoaconitate) is related to aconitic acid but with one extra carbon. It is part of the α-aminoadipate pathway for lysine biosynthesis, where it is made from homoisocitric acid by homoisocitrate dehydrogenase.^[1]^[2]