OEM/ODM Factory veterinary antiboitic drug Doxycycline and Neomycin and Vitamins Soluble Powder for poultry E. coli
We aim to find out high quality disfigurement in the generation and provide the most effective services to domestic and abroad clients wholeheartedly for OEM/ODM Factory veterinary antiboitic drug Doxycycline and Neomycin and Vitamins Soluble Powder for poultry E. coli, “Quality first, Price lowest, Service best” is the spirit of our company. We sincerely welcome you to visit our company and negotiate mutual business!
We aim to find out high quality disfigurement in the generation and provide the most effective services to domestic and abroad clients wholeheartedly for , Our company adheres to the spirit of “lower costs, higher quality, and making more benefits for our clients”. Employing talents from the same line and adhering to the principle of “honesty, good faith, real thing and sincerity”, our company hopes to gain common development with clients from both at home and abroad!
Features:
Show the biological activity of ascorbic acid compounds known, is a water-soluble vitamins, fruits and vegetables are abundant. In redox reactions regulate the metabolism of the lack of it can cause scurvy
| ITEM | STANDARD |
| Appearance | White or almost white crystal or crystalline powder |
| Identification | Positive |
| Melting point | 191 ℃ ~ 192℃ |
| pH (5%, w/v) | 2.2 ~ 2.5 |
| pH (2%,w/v) | 2.4 ~ 2.8 |
| Specific optical rotation | +20.5° ~ +21.5° |
| Clarity of solution | Clear |
| Heavy metals | =<0.0003% |
| Assay (as C 6H 8O6, %) | 99.0 ~ 100.5 |
| Copper | =<3 mg/kg |
| Iron | =<2 mg/kg |
| Mercury | =<1 mg/kg |
| Arsenic | =<2 mg/kg |
| Lead | =<2 mg/kg |
| Oxalic acid | =<0.2% |
| Loss on drying | =<0.1% |
| Sulphated ash | =< 0.1% |
| Residual solvents (as methanol) | =< 500 mg/kg |
| Total plate count (cfu/g) | =< 1000 |
| Yeasts & molds (cfu/g) | =< 100 |
| Escherichia. Coli/g | Absence |
| Salmonella/ 25g | Absence |
| Staphylococcus aureus/ 25g | Absence |
