CAS number： 59-67-6
Molecular formula： C6H5NO2
molecular weight： 123.1094
Chemical structure：
| Product name: | Nicotinic Acid | ||
| Shelf life | Three years | ||
| Inspection Standard: | USP34 | ||
| Items | Specifications | Test method | Results |
| Assay, % | 99.0-101.0 | UV | 99.7 |
| Identification A | Conform | IR | Conform |
Identification B (Ratio:A237/A262) | 0.46-0.50 | UV | 0.47 |
| Loss on drying,% | ≤ 1.0 | Air dry oven | 0.19 |
| Residue on ignition ,% | ≤0.1 | High temperature ignition | 0.02 |
| Chloride,% | ≤0.02 | Colorimetry | ＜0.02 |
| Sulfate,% | ≤0.02 | Colorimetry | |
| Heavy metals,% | ≤0.002 | Colorimetry | |
| Ordinary impurities | Conform | TLC | Conform |
| Conclusion : This material complies with USP34 | |||
