A white or yellowish white powder .Odorless or almost.bygroscopic
Conforms
Identification
A:B:C The positive reaction.
Conforms
Solubility
Very soluble in water, insoluble in acetone , chloroform, ether.
Conforms
Specific optical rotation
+53.5°~ +59.0°
+58.0°
Acidity of alkalinity
5.0~7.5
6.7
Impurity A
2%max
Conforms
Impurity C
3% ~15%
Conforms
Any other impurity
not more than the area of the principal peak
Conforms
in the chromatogram obtained with RS(B)5%
Total other impurity
not more than 3times the area of the principal peak
Conforms
in the chromatogram obtained with RS(B)15%
Disregard limit
ae of the principal peak in the chromatogram
Conforms
obtained with RS(C)1%
Loss on drying (pct)
max8.0
5.0%
Sulphate
27.0-31.0%
28.4%max
Sulphated ash
1% max
0.2%
Microcount limit test
NMT 500 col/g
10 col/g
Microcount-yeast and molds
NMT 10 col/g
Conforms
Microcount-Escherichia coli
Absent
Conforms
Microcount-Staphy lococcus aureus
Absent
Conforms
Microcount-Pseudo monas
Absent
Assay
≥680I.U./mg (DRY)
687I.U./mg DRY 653I.U./mg MOIST
1 This product has a certain antibacterial effect on some anaerobes, but it is far inferior to metronidazole, clindamycin and chloramphenicol, so it is not used clinically. Over the years, due to the extensive application of tetracyclines, Gram-negative bacteria such as Staphylococcus and gram-negative bacilli, such as Staphylococcus, have been extensively drug-resistant to tetracycline. Moreover, there are cross resistance among the species of the same kind. The action mechanism of this product is that the drug can specifically bind to the A location of the ribosomal 30S subunit, and prevent the binding of aminoyl tRNA on this site, thereby inhibiting the growth of peptide linkage and affecting the protein synthesis of bacteria. 2 The first choice for the treatment of non bacterial infection of Chlamydia, Rickettsia, mycoplasma pneumonia disease, relapsing fever and other infections, but also for the treatment of brucellosis, cholera, tularemia, rat bite fever, anthrax, tetanus, plague, actinomycosis, gas gangrene and sensitive bacterial respiratory system, bile duct, urinary tract infection and skin and soft tissue infec
Packaging & Shipping
Our Services
Company Information
Qingdao sigma Chemical Co.,Ltd is a global chemical industry manufacturers and suppliers of pharmaceuticals
and intermediates, food and feed additives, herbal extracts, agrochemicals and fine chemicals etc.
The aim of Qingdao sigma Chemical Co.,Ltd is a quality policy that "Elements in the system all have been satisfied,
Personnel has been trained; Every batch of material is checked, Each procedure guarantees the quality; Every bag of our products is top grade, Service is thoughtful all the time, quality and reputation to increase market share and promote enterprise development. The quality, colors and forms of our products have reached a high level in related chemical industry, which relies on characteristic and advanced processing technology and it has gained a high and reliable reputation from customers at both quality and services.
FAQ
Q1: Are you a manufacturer? Answer: Yes, we are factory founded on 2002. Q2: How to contact with us? Click the Alibaba "Contact Supplier" And then send us message the product you interest in, you will get reply within 24 hours. Q3:Which kind of payment terms do you accept? For small order,you can pay by T/T,Western Union or Paypal,nomal order by T/T to our company account Q4:Can you give me a discount price? Surely,It depend on your qty Q5:How can i get a sample? free samples is available,but freight charges will be at your account and the charges will be return to you or deduct from your order in the future. Q6: 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. Q7: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.
