Trimellitic Anhydride (CAS 552-30-7) Market Research Report 2025 '@aboutTrimellitic anhydride, otherwise known as trimellitic acid anhydride, anhydrotrimellic acid and 1,2,4-benzenetricarboxylic anhydride, is a white, crystalline powder or flakes that melts at 163-166 В°C, boils at 390 В°C and has a flash point of 227 ...