| DECHEMA ID | 31181 |
| Formula | C9H4O5 |
| Synonym | 4-carboxyphthalic anhydride |
| Synonym | trimellic acid anhydride |
| Synonym | trimellic acid-1,2-anhydride |
| Synonym | trimellitic acid cyclic-1,2-anhydride |
| Synonym | trimellitic anhydride |
| Synonym | 1,2,4-benzenetricarboxylic acid cyclic 1,2-anhydride |
| Synonym | 1,2,4-benzenetricarboxylic anhydride |
| Synonym | trimellitic acid anhydride |
| Synonym | 1,2,4-benzenetricarboxylic acid anhydride |
| Synonym | 1,2,4-benzenetricarboxylic acid, cyclic-1,2-anhydride |
| Synonym | 1,3-dioxo-5-phthalancarboxylic acid |
| InChi-Key | SRPWOOOHEPICQU-UHFFFAOYSA-N |
| Registry No. | 552-30-7 |