Melting Point:160.0-170.0°CIdentity (IR):Conforms to referenceWater (Karl Fischer):≤2%Specific Optical Rotation (c=1% in H2O):-109.0 to -103.0°Storage and Stability: May be stored at RT for short-term only. Long-term storage is recommended at -20°C. Stable for 6 months after receipt. For maximum recovery of product, centrifuge the original vial prior to removing the cap.