Fumonisin B2

Fumonisin B2 is a fumonisin mycotoxin produced by the fungi Fusarium verticillioides (formerly Fusarium moniliforme) and Aspergillus niger.^[1]

Fumonisin B2

Names
Preferred IUPAC name (2R,2′R)-{[(5R,6R,7S,9S,16R,18S,19S)-19-Amino-16,18-dihydroxy-5,9-dimethylicosane-6,7-diyl]bis[oxy(2-oxoethane-2,1-diyl)]}dibutanedioic acid
Other names FB2
Identifiers
CAS Number	116355-84-1 N
3D model (JSmol)	Interactive image
ChEBI	CHEBI:38225 Y
ChemSpider	2015284 Y
ECHA InfoCard	100.114.556
KEGG	C19242 N
PubChem CID	2733489
CompTox Dashboard (EPA)	DTXSID80891857
InChI InChI=1S/C34H59NO14/c1-5-6-12-21(3)32(49-31(43)18-24(34(46)47)16-29(40)41)27(48-30(42)17-23(33(44)45)15-28(38)39)14-20(2)11-9-7-8-10-13-25(36)19-26(37)22(4)35/h20-27,32,36-37H,5-19,35H2,1-4H3,(H,38,39)(H,40,41)(H,44,45)(H,46,47)/t20-,21+,22-,23+,24+,25+,26-,27-,32+/m0/s1 Y Key: UXDPXZQHTDAXOZ-STOIETHLSA-N Y InChI=1/C34H59NO14/c1-5-6-12-21(3)32(49-31(43)18-24(34(46)47)16-29(40)41)27(48-30(42)17-23(33(44)45)15-28(38)39)14-20(2)11-9-7-8-10-13-25(36)19-26(37)22(4)35/h20-27,32,36-37H,5-19,35H2,1-4H3,(H,38,39)(H,40,41)(H,44,45)(H,46,47)/t20-,21+,22-,23+,24+,25+,26-,27-,32+/m0/s1 Key: UXDPXZQHTDAXOZ-STOIETHLBE
SMILES O=C(O)C[C@@H](C(=O)O)CC(=O)O[C@@H](C[C@@H](C)CCCCCC[C@@H](O)C[C@H](O)[C@@H](N)C)[C@H](OC(=O)C[C@H](C(=O)O)CC(=O)O)[C@H](C)CCCC
Properties
Chemical formula	C34H59NO14
Molar mass	705.83 g/mol
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

It is a structural analog of fumonisin B3, while it is lacking one hydroxy group compared to fumonisin B1.^[2]

Fumonisin B2 is more cytotoxic than fumonisin B1. Fumonisin B2 inhibits sphingosine acyltransferase.

Fumonisin B2 and other fumonisins frequently contaminate maize and other crops, while recently it has been shown using LC–MS/MS that FB2 can contaminate coffee beans as well.^[3]