1 | Description | Transparent, colorless, odourless crystals. | Transparent, colorless, odourless crystals. |
2 | Solubility | Complies | Freely soluble in water; insoluble in alcohol. |
3 | Identification A (Sodium) | Complies | A dense precipitate should form. |
4 | Identification B (Tartrate) | Complies | Reddish pink color should produce within 15 min. |
5 | Assay (on dried basis) | 99.8% | 99.0%-100.5% |
6 | pH (10% aq soln) | 8.1 | 7 - 9 |
7 | Loss on drying, 150°C for 3 Hr. | 15.4% | 14.0% - 17.0% w/w |
8 | Specific optical rotation | +30.5° | + 29.5° to + 31.5° |
9 | Clarity and colour of solution | Complies | Any colour produced is not more intense than that of reference solution Y2. |
10 | chloride | Less than 0.002% | NMT 0.002% |
11 | Sulfate | Less than 0.005% | NMT 0.005% |
12 | Iron | Less than 0.001% | NMT 0.001% |
13 | Heavy metals | Less than 0.002% | NMT 0.002% |
14 | Total aerobic microbial count | Less than 100 CFU/gm | NMT 100 CFU/gm |
15 | Total combined yeast and molds count | Less than 10 CFU/gm | NMT 10 CFU/gm |
16 | Staphylococcus aureus | Absent/gm | should be absent/gm |
17 | Pseudomonas aeruginosa | Absent/gm | should be absent/gm |
18 | Bacterial endotoxins | Less than 2.5 EU/gm | NMT 2.5 EU/gm (For injectable grade only) |