| 1 | Description | White, odorless crystalline powder. | White, odorless granules or crystalline powder. |
| 2 | Solubility | Complies | Soluble in alcohol; slightly soluble in water and in ether. |
| 3 | Identification by IR | Complies | IR spectra of the sample should be concomitant with IR spectra of the corresponding standard. |
| 4 | Identification (By Chromatogram) | Complies | The retention time of the fumaric acid peak of the sample solution corresponds to that of the standard solution as obtained in the assay. |
| 5 | Assay (Anhydrous basis) | 100.05% | 98.0% - 102.0% |
| 6 | Residue on ignition | 0.04% | NMT 0.1% |
| 7 | Limit of Maleic acid | 0.004% | NMT 0.1% |
| 8 | Limit of Malic acid | Not detected | NMT 1.5% |
| 9 | Water | 0.34% | NMT 0.5% |
| 10 | Particle size | 0.0% retain on 40 mesh, 6% ratain on 60 mesh and 22% retain on 100 mesh. | NMT 10% retain on 40 mesh,NMT15% retain on 60 mesh and NMT 20%-50% retain on 100 mesh. |