Another name：(2S)-3-(2-Sulfanylidene-2,3-dihydro-1H-imidazol-4-yl)-2-(trimethylazaniumyl)propanoate;
L-Ergothioneine; Thiasine
CAS Number: 497-30-3
ChEBI：4828
ChemSpider: 4508619
Chemical formula: C9H15N3O2S
Appearance: white solid
Molar mass:229.30 g/mol
Density: 1.254 g/mL
Melting point:275 to 277 °C °C
Solubility：soluble in water
Refractivity:1.6740