PDF
Full
Outline
To analyze the structure of the maximum impurity in halometasone/triclosan cream and discuss the rationality of the current registered standard for imported drugs.
The related substances in halometasone/triclosan were detected according to JX20080304, and dioxins were determined according to USP. Finally, the possible structures of the maximum impurity were characterized by LC-Q TOF/MS.
The results showed that the maximum unknown impurity(RRT 0.67), calculated according to halometasone was OOS(1.0%) at 2.5%. The peak was related to triclosan through comparing with the chromatography behavior of triclosan in reference substance solution. MS information indicted the process impurities of triclosan.
For compound preparations, to ensure the stability and safety of the product, the impurities relevant to different components should be controlled separately at rational limit based on safety data.
PDF
122
56
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
关闭全屏
No. 86 Xueyuan South Road, Haidian District, Beijing
010-62199257
qkjq@cast.org.cn
Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House
