Product Name R-Alpha Lipoic Acid Synonym 5-[(3R)-1,2-dithiolan-3-yl]pentanoic acid;5-[(3R)-dithiolan-3-yl]pentanoic acid;5-[(3R)-dithiolan-3-yl]valeric acid;(R)-(+)-1,2-Dithiola;(R)-5-(1,2-Dithiolan-3-yl)pentanoic acid;(R)-Thioctic Acid (R)-1,2-Dithiolane-3-valeric Acid;D-lipoic acid;(R)-(+)-1,2-Dithiolane-3-pentanoic acid Product No GIHI-18 Formula C8H14O2S2 Molecular Weight 206.33 CAS NO 1200-22-2 EINECS NO 638-752-2 Flash point >230 °F Melting Point 48-52 °C(lit.) Specific rotation D23 +104°