- Pharmaceutical[10]
- Feed Additives[7]
- Veterinary Medicine[3]
- Plant Extract[1]
- Contact Person : Mr. Zhang Mark
- Company Name : Shijiazhuang Reverence Animal Husbandry Science And Technology Co., Ltd.
- Tel : 86-311-87666006
- Fax : 86-311-87666006
- Address : Hebei,shijiazhuang,1 LINE 14 BLOCK 2 SOUTHWEST AREA XISANJIAO VILLAGE QIAOXI DISTRICT SHIJIAZHUANG
- Country/Region : China
- Zip : 050000
oxytetracycline 79-57-2
oxytetracycline 99%cas no 79-57-2 veterinary drughigh quality best price made in china
Items | Specifications | Results |
Characters | A yellow crystalline powder | A yellow crystalline powder |
Identification | A) TLC results B) Colour reaction with sulphuric acid C) Colour reaction with silver nitrate | Complies Complies Complies |
pH | 4.5~7.5 | 5.8 |
Specific optical rotation(anhydrous substance) | -203°~-216° | -208° |
Specific absorbance 353nm(anhydrous substance) | 290~310 | 305 |
Light-absorbing impurities 430nm (anhydrous substance) | Maximum 0.25 | 0.12 |
Light-absorbing impurities 490nm (anhydrous substance) | Maximum 0.20 | 0.13 |
Related substances 4-epioxytetracycline Tetracycline(hydrochloride) 2-acetyl-2-decarbamoyloxytetracycline | Not more than 0.5% Not more than 2.0% Not more than 2.0% | 0.4% 0.9% 1.9% |
Heavy metals | Maximum 0.005% | Complies |
Water | 6.0%~9.0% | 7.5% |
Sulphated ash | Maximum 0.5% | 0.0% |
Assay (anhydrous substance) | 95.0%~102.0% | 96.1% |
oxytetracycline 79-57-2