... weight Chemical formula:C10H10O4 Molecular weight:194.19 CAS No.:131-11-3 2. Properties and usescolourless,transparent ... synthesis etc..3. Quality standard SpecificationSuper GradeFirst GradeQualified GradeColourity ,code No. ≤153080Acidity(calculated as phthalic acid),%≤0.0080.0100. ... GC),% ≥99.099.098.5Flash point,°C ≥135130130Heat stability ,code No. ≤2050/Water content,% ≤0.100.20/4. Package ...