Product Name (S)-3-Hydroxy-gamma-butyrolactone CAS.No. 7331-52-4 Appearance Colorless liquid Einecs No. 434-990-4 Purity >99% Sample Support Payment BTC,T/T,L/C,MoneyGram,Western Union etc. Deliver Time Usually 7-10days; For large quantity:7-40days Shipping DHL/TNT/Fedex/UPSï¼? Door to door shipping, For large quantityï¼? By sea or as your requrest