1 | Description | White, odorless crystals. | White, odorless crystals (USP-NF/Ch.P) |
2 | Solubility | Passes | Soluble in water, in alcohol, and in glycerine; freely soluble in boiling water. (USP-NF) |
3 | Identification (By IR) | Complies | The infrared spectrum should be concordant with that of succinic acid standard. It exhibits absorption at the wave numbers of about 1690 cm-1, 1424 cm-1, 1314 cm-1, 1206 cm-1, and 920 cm-1 (USP-NF/Ch.P) |
4 | Identification (By Chromatographic identity) | Complies | The retention time of the major peak of the sample solution corresponds to that of the standard solution, as obtained in the assay. (USP-NF) |
5 | Assay(HPLC) | 99.7% | 99.0% - 100.5% (USP-NF) |
6 | Residue on ignition | 0.013% | NMT 0.025% (USP-NF/Ch.P) |
7 | Melting range | 187.0°C - 189.0°C | 185.0°C - 190.0°C (USP-NF/Ch.P) |
8 | Potassium permanganate- reducing substances | Passes | The color of solution does not disappear within 3 min. (JP) |
9 | Total aerobic microbial count | Absent | NMT 100cfu/g (In-house) |
10 | Total Yeast and mold count | Absent | NMT 10cfu/g (In-house) |
11 | Bacterial endotoxin test | Complies | NMT 2.5EU/g (In-house) |