| Item |
Specification |
| Q/SH008-2000 |
B.P2000 |
USP29-NF24 |
| Characters |
/ |
Colorless crystals or white crystalline powder |
/ |
| Purity (on dry base) % |
99 |
99.0-100.5 |
99.0-100.5 |
| Melting Point ℃ |
125-128 |
125-128 |
125-128 |
| Acidity |
qualified |
qualified |
qualified |
| Sulfate(SO42-) % ≤ |
0.024 |
/ |
/ |
| Loss on Drying % ≤ |
0.5 |
0.5 |
0.5 |
| Residue % ≤ |
0.1 |
0.1 |
0.1 |
| p-Hydroxybenzoic Acid and Salicylic Acid % ≤ |
0.1 |
/ |
/ |
| Related Substances |
/ |
qualified |
/ |
| Appearance of Solution |
/ |
Clear |
/ |
| Organic Volatile impurities |
/ |
/ |
qualified |
| Identification |
/ |
/ |
qualified | |
| |
|