... ,IBC drum cas:499-75-2 specification:50-80-90-99.9%(GC) financial support: open account Carvacrol natural Carvacrol naturalRef ... odor of celeryPHYSICOCHEMICAL PROPERTIESAssay (GC): 50%,60%,70%,80%,90%,99% ,99.9%Specific gravity @ 25°C: 0.972 ~ 0.980Refractive index ... , avoid prolonged exposure to light, heat and air. nature Carvacrol 99% (used in food )