Complaint
| product name | Chlortetracycline |
| cas number | 57-62-5 |
| apperance | white powder |
| Density | 1.7±0.1 g/cm3 |
| MF | C22H23ClN2O8 |
| MW | 478.880 |
The chemical name of chlortetracycline (chlortetracycline) is chlorotetracycline and the chemical formula is C22H23ClN2O8. It is a golden yellow crystalline powder produced by the fermentation of Streptomyces aureofacieus. The fermentation broth is acidified and filtered to obtain a precipitate, which is dissolved in ethanol. The crude product is obtained by acid precipitation, and the hydrochloride crystal is obtained by dissolution and salt formation.
The effect and antibacterial spectrum are the same as those of tetracycline, but the adverse reactions are the largest among tetracyclines (chlortetracycline>oxytetracycline>tetracycline).
Chlortetracycline is a tetracycline antibiotic, and many rickettsia, mycoplasma, chlamydia, atypical mycobacteria, and spirochetes are sensitive to chlortetracycline. Enterococcus is resistant to it. Over the years, due to the wide application of tetracyclines, common clinical pathogens are highly resistant to chlortetracycline, and gram-positive bacteria such as staphylococci and most enterobacteriaceae are resistant. There is cross-resistance between different varieties of chlortetracycline and tetracycline. The mechanism of action of chlortetracycline is that the drug can specifically bind to the A position of the 30S subunit of the bacterial ribosome to inhibit the growth of the peptide chain and affect the synthesis of bacterial protein.
Indications
It is used for purulent skin diseases such as impetigo, mild small burns and infections of ulcers.
Package for the Chenodeoxycholic Acid
[Storage] Stored in a clean, cool and dry area; keep away from strong, direct light.
[Shelf Life] 2 years when properly stored.
[Packing]
Inner double plastic bags--25kg/Fiber drum (35*35*53cm, GW: 28kg, NW: 25kg, 0.06CBM);
Inner double plastic bags--5kg/Aluminum foil bag (GW: 6.5kg, NW: 5kg);
Inner double plastic bags--1kg/Aluminum foil bag (GW: 1.5kg, NW: 1kg).
[Delivery] 5 working days after payment.
Shipping
1. Preferentially DHL or FedEx for quantity less than 50KG; Air shipping for 100KG above;
Sea shipping for quantity over 500KG.
2. For customers from Russia, Mexico, Turkey, Slovenia, Romania, etc, before placing an order,
please kindly confirm if you can make clearance when goods reach your customs.
Company information
Thanks for your considering of Hebei Guanlang Biotechnology Co., Ltd.(Crovell).Crovell is a fast growing intermediates company,Which located in Shijiazhuang,Hebei Province.
Crovell is specialized in pharmaceutical intermediate,veterinary drug intermediates and dyes intermediates,such as phenylacetamide,dimethylamine hcl, benzyl chloride etc.Crovell also supply various industrial chemicals for customers, such as citric acid,potassium chloride etc.
So far,Crovell has business in more than 35 countries,most big customers come from europe and America, because among the suppliers in china,Crovell can always make the product quality best, some of the products from Crovell can reach the purity of 99.9+, such as 2-phenylacetamide. This is the important reason for customers who choosing Crovell.
Q: How to start orders or make payments?
A:You can send our your Purchase order(if your company has), or just send a simple confirmation by email or by Trade Manager, and we will send you Proforma Invoice with our bank details for your confirmation, then you can make payment accordingly. for payment , can also be by western union ,money gram ,bitcoin ,that is very easy
Q: How to confirm the Product Quality before placing orders?
A:You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.
Q: What's your MOQ?
A:For the high value product, our MOQ starts from 1g and generally starts from 10gs. For other low price product, our MOQ starts from 100g and 1kg.
Q: Is there a discount?
A: Yes, for larger quantity, we always support with better price.
Q:How do you treat quality complaint?
First of all, our quality control will reduce the quality problem to near zero. If there is a quality problem caused by us, we will send you free goods for replacement or refund your loss.
Q:How to contact us ?
You can choose your interested products and send inquiry to us.
You can dial our telephone directly, you will get our reply.
Send Email to us.
Q:what is the shipping way ?
A: for small order ,we ship by air express ,like Fedex, TNT,DHL,EMS ,
for large order ,we can send by air to the air port and send by sea to the sea port
Contact
Daisy
Hebei Guanlang Biotechnology Co., Ltd
Add:No.66,Yuhua West Road,Shijiazhuang,Hebei,China
Website:crovellbio.en.made-in-china.com
