Sell gamma-butyrolactone GBL

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we are regularly sell gbl to all over the world, both wholesale and retail.
Product name: gamma-Butyrolactone
CAS No: 96-48-0
Chemical Formular: C4H6O2
Appearance: transparent liquid in the shape of oil.
Grade: min 99.8% &min 99.5%
Density (g/ml) 1.124-1.131
Colourity: max 40
Refractive index n20D1.4350-1.4375
Characteristics: It can be mixed with water and dissolved by ethanol, ether, benzene, acetone, and other organic and inorganic compounds. It is a liquid with high boiling, powerful solvency, good electrical and stability properties.