... .4434(20oc). Tri-iso-octyl Phosphate(TOP) Molecular Formula: C24H51O4PCAS NO.: 78-42-2 Characterisics: Colourless,transparent oily liquid,b.p ... .4434(20°C). Specification:SpecificationSuper GradeFirst GradeColourity(Pt-Co),code No. ≤3050Acid value,mgKOH/g ≤0.100.20Density,g/cm30.924 ...