Ammonium fumarate

Names
Systematic IUPAC name Ammonium (E)-but-2-enedioate
Other names Diammonium fumarate; E368
Identifiers
CAS Number	14548-85-7 (2:1 salt) Y 32378-54-4 (unspecified salt) Y
3D model (JSmol)	Interactive image
ChemSpider	4945093 Y
ECHA InfoCard	100.035.070
E number	E368 (antioxidants, ...)
PubChem CID	6440849
UNII	YG927OP0BK (2:1 salt) Y
CompTox Dashboard (EPA)	DTXSID4029307
InChI InChI=1S/C4H4O4.2H3N/c5-3(6)1-2-4(7)8;;/h1-2H,(H,5,6)(H,7,8);2*1H3/b2-1+;; Y Key: CKKXWJDFFQPBQL-SEPHDYHBSA-N Y InChI=1/C4H4O4.2H3N/c5-3(6)1-2-4(7)8;;/h1-2H,(H,5,6)(H,7,8);2*1H3/b2-1+;; Key: CKKXWJDFFQPBQL-SEPHDYHBBX
SMILES O=C(O)\C=C\C(=O)O.N.N
Properties
Chemical formula	C4H10N2O4
Molar mass	150.134 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is YN ?) Infobox references

Ammonium fumarate is a compound with formula (NH₄)₂(C₂H₂(COO)₂). It is the ammonium salt of fumaric acid. As a food additive, it has the E number E368.