| Product Name | 3-methylphthalic anhydride |
| CAS No. | 4792-30-7 |
| Synonyms | 1,3-Isobenzofurandione, 4-methyl-; 2,3-Toluenedicarboxylic anhydride; 3-Methylphthalic anhydride; NSC 61875; Phthalic anhydride, 3-methyl-; 4-methyl-2-benzofuran-1,3-dione |
| InChI | InChI=1/C9H6O3/c1-5-3-2-4-6-7(5)9(11)12-8(6)10/h2-4H,1H3 |
| Molecular Formula | C9H6O3 |
| Molecular Weight | 162.1421 |
| Density | 1.364g/cm3 |
| Melting point | 114-118℃ |
| Boiling point | 315.6°C at 760 mmHg |
| Flash point | 153.3°C |
| Refractive index | 1.597 |
| Hazard Symbols |  Xi:Irritant; |
| Risk Codes | R36/37/38:; |
| Safety | S26:; S37/39:; |
4792-30-7 3-methylphthalic anhydride
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