CASR |
: | 617-48-1 |
Molecular Formula |
: | C4H6O5 |
Molecular Weight |
: | 134.09 |
| Specifications | |
|---|---|
| Description: | White or practically white, crystalline powder or granules, having a strongly acid. Melts at about 130°C. |
| Solubility: | Very soluble in water; freely soluble in alcohol and Sparingly soluble in acetone. |
| Identification (By IR): | IR spectra of the sample should be concomitant with IR spectra of the standard. |
| Identification (By Melting point): | 128.0°C - 132.0°C |
| Appearance of solution: | Clear and colourless. |
| Assay: | 99.0% - 100.5% |
| Assay (anhydrous substance): | 99.0% to 101.0% |
| Optical Rotation: | -0.10° to + 0.10° |
| Water insoluble substances: | NMT 0.1% |
| Residue on ignition: | NMT 0.1% |
| Related substances: Impurity A (Fumaric acid): | NMT 1.0 % |
| Related substances: Impurity B (Maleic acid): | NMT 0.05% |
| Related substances: Any other impurity: | NMT 0.1% |
| Related substances: Total impurity: | NMT 0.5% |
| Water: | NMT 2.0% |
