ItemDetailsAppearancecolorless transparent liquidPurity %99.5MINMoisture %0.2MAXRefractive Index nD 201.436-1.437- GBL intermediate colorless transparent liquid - Butyrolactone can be used in pyrrolidone series, rolicyprine, acetylγ -butyrolactone; Butyrolactone can be used as extractant of agricultural chemicals, polymer, dye, solvent and petrochemical. Butyrolactone can be used in flavor, pharmaceutical intermediate and antirust agent.