Appearance (Color) : Blue to Green Appearance (Form) Powder or Crystal or Chunk(s) Synonym : VO(acac)2, Vanadium(IV)-oxy acetylacetonate CAS Number : 3153-26-2 Molecular Weight : 265.16 Linear Formula : OV(C5H7O2)2 %V Titration by KMNO4 18.7 - 19.7 %