Doxycycline Hyclate is a semi synthetic tetracycline antibiotic, which can penetrate the cell membrane and bind to the 30S ribosome subunit, interfere with the tRNA/mRNA interaction, and ultimately inhibit protein synthesis. As a broad-spectrum antibiotic and antibacterial agent, has strong resistance to bacteria that cause respiratory infections, including Mycoplasma pneumoniae and Haemophilus influenzae. In addition, it can also treat infections caused by Chlamydia, Rickettsia, and certain spirochetes, and has antigenic and insecticidal properties.
| Items |
Specifications |
Results |
| Appearance |
Yellow crystalline powder |
Conforms |
| Identification |
TLC |
Conforms |
| sulphuric acid reaction a yellow colour develops |
Conforms |
| it gives reaction of chlorides |
Conforms |
| PH |
2.0~3.0 |
2.3 |
| Specific absorbance |
at 349nm e(1%) 300~355 |
320 |
| Specific optical rotation |
-105 ~ -120° |
-110° |
| Heavy metals: |
≤50ppm |
< 20ppm |
| Light-absorbing impurities |
at 490nm ≤0.07 |
0.03 |
| Related substances |
6-epidoxycycline ≤2.0% |
1.60% |
| metacycline ≤2.0% |
0.10% |
| 4-epidoxycycline ≤0.5% (ep5) |
Not found |
| 4-epi-6-epidoxycycline ≤0.5% (ep5) |
Not found |
| oxytetracycline ≤0.5% (ep5) |
Not found |
| any other impurity ≤0.5% |
Not found |
| not identified impurities ≤0.1% (ep5) |
Not found |
| Ethanol |
4.3~6.0% (m/m) |
4.50% |
| Sulphated ash |
≤0.4% |
0.05% |
| Water |
1.4~2.8% |
1.80% |
| Assay |
95.0~102.0% ( c22h25cln2o8) |
98.60% |
| based on anhydrous, ethanol-free substance |
It is very effective in curing the upper respiratory tract infection, lacunar angina, infection of biliary tract, adenolymphitis, phlegmon, Chronic bronchitis caused by gram-positive cocci and gram-negative bacilli.
It has the effect of antibacterial and sterilization with wide spectrum of antibacterial.
It is widely used in the veterinary drugs due to its good effect in curing mycoplasma avian species and pig respiratory disease.
Qingdao Qingmei Biotech Co., Ltd is a pharmaceutical company, which is to expand international business and strategic cooperation with Contract Manufacturing on Supplements(Hard Capsules, Softgels, Powders, Sachet), Active Ingredients for Human Health and Animal Health, Herbal Extracts, Food Additives, Feed Additives, Vitamins, Amino Acids, Minerals, Cosmetics raw materials, Pet Medicines, Disinfectant, Farming and Fishery Industry.
The company is located in the beautiful coastal city of Qingdao, near City Hall and the May Fourth Square, and also close to the port, so that it has convenient traffic conditions for trade. The company's business focuses on the development and promotion of the pharmaceutical chemicals, animal health, food additives, plant extracts, cosmetic raw materials, intermediates and other fine chemicals. Production in Qingmei is in accordance with GMP standards, and files are compiled and registered in regulated market to ensure smooth supply channels. Guided by the market development, Qingmei works hard to cover more customers.
Our products are approved by cGMP, CEP/COS, FDA, TGA, EUGMP, FAMI-QS and also Halal, Kosher etc.
Our products are widely sold to regions of Asia, Africa, Europe, Latin America, and long-term stable cooperative relations have been established with merchants from hundreds of countries and regions with our cooperation agencies in Turkey, South Africa, Indonesia, Russia, Brazil, Canada and the United States working stably. We are looking forward to making progress together with you!
1:Can I get some samples before bulk order?
Most products provide free samples, but the shipping cost be paid by customers.
2: What's your MOQ?
For the high value product, our MOQ starts from 10g,100g and 1kg.
3: Which kind of payment terms do you accept?
PI will be sent first after confirmation of order,enclosed our bank information.Payment by T/T, Western Union, L/C.
4.How to place an order?
You can contact me through Trademanager, WhatsApp, Skype Online and other contact methods, tell me the product and quantity you need, and then we will give you a quote. If you choose one of the above payment methods, we will arrange the delivery for you.
5:How about your delivery time?
A: Generally, it will take 5 to 7 days after receiving your advance payment.
6:How do you treat quality complaint?
A:First of all, our quality control will reduce the quality problem to near zero. If there is a real quality problem caused by us, we will send you free goods for replacement or refund your loss.
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