where to buy gbl (gamma butyrolactone) powder/liquid and research chemical. best place to order various research chemicals at best prices. gamma butyrolactone has been found in extracts from samples of unadulterated wines. this finding indicates that gbl is a naturally occurring component in some wines and may be present in similar products. the concentration detected was approximately 5 µg/ml and was easily observed using a simple extraction technique followed by gc/ms analysis. gbl (gamma-butyrolactone) other names: gbl wheel cleaner cas: 96-48-0 einecs: 202-509-5 appearance: colourless oily liquid melting point: [hidden] °c boiling point: 204 °c molar mass: 86.0891 g/mol density: 1.13 g/cm? formula: c4h6o2 iupac id: dihydrofuran-2(3h)-one conact details follow us on our wickr id : discreetchemica text/whatsapp: +1 (720) 442-7955 email: toneymooresupplement[at]gmail[.com]