Formulation: A solid
Formal Name: 1,1'-ethylenebis-L-tryptophan
Purity: ≥95%
Formula Markup: C24H26N4O4
Formula Weight: 434,5
Shelf life (days): 1460
CAS Number: 132685-02-0
Notes: 1,1'-Ethylidene-bis-(L-tryptophan) is a potential impurity found in commercial preparations of L-tryptophan.{58985} It increases the proliferation of EoL-3 eosinophilic leukemia cells, release of eosinophil cationic protein from isolated human peripheral blood eosinophils, and IL-5 production in isolated human T cells.{58986} 1,1'-Ethylidene-bis-(L-tryptophan) (40 µg/kg) induces fascia thickening and increases mast cell infiltration, inflammation, and fibrosis in superficial adipose and panniculus carnosus tissues in mice as a model system of eosinophilia-myalgia syndrome.{58987}