2016年6月6日星期一

Tetrahydrocurcuminoids


Product Name: tetrahydrocurcuminoids
CAS: 36062-04-1
Molecular formula: C21H26O6
Molecular Weight: 372.2
Product Description: This product is better than arbutin laundering; Can effectively radicals free oxygen (oxygen free radicals) generation may remember and the formation of free radicals, obvious antioxidant effect, such as the aging of human skin, repair, desalination pigment, body, etc. This product widely used in bleaching, stain, and all kinds of products antioxidants skin care such as cream, lotion and gasoline in products.

2016年6月5日星期日

Maslinic acid price


Product Name: maslinic
CAS: 4373-41-5
Molecular formula: 4373-41-5
Molecular Weight: 472.71
Product Description: anti-tumor, anti-HIV can the Hagedorn acid have a 80% lower risk of the spread of HIV / AIDS in the body. The anti-inflammatory and antibacterial.Hawthorn acid can inhibit serine protease, and the use to be used for external release before one of the cells infected with HIV, infected distributed to the body.

2016年6月3日星期五

Isoprene


Product Name: isoprene
CAS: 78-79-5
Molecular formula: C5H8
Molecular Weight: 68.12
Product Description: Colorless liquid stimulus. 34 ℃ - 120 ℃, melting point, boiling point. Insoluble in water, soluble in benzene, soluble in ethanol and ether. Molecules containing a conjugated double bond, susceptible to polymerization. Process of oxidation and polymerization in memory, often a small amount of a stabilizer such as linking hydroquinone. It is mainly used for preparing styrene-butadiene rubber and polyisoprene rubber. May be prepared by the high temperature cracking of liquefied petroleum gas (LPG), or can also be produced from the condensation of acetylene and acetone by isopentane and pentene-dehydrogenation.

What is Mecillinam

Mecillinam, a specific beta-lactam antibiotic-penicillin binding protein 2 (PBP 2) in Escherichia coli, the expansion of the cell wall blocks and indirect cell division, but the lethality by high levels of ppGpp, the effector nucleotide overcome tough response. We have an E. coli K-12 strain is subjected to random insertional mutagenesis with mini-Tn member 10. An insertion that was found to confer resistance to a relA + strains and relA mecillinam, was 75.5 minutes on E. coli and was ready to map between the promoter and the coding sequence of the gene coding for shikimate kinase AROK Figure 1 is an E. coli two shikimate kinase, both of which are involved in the biosynthesis of aromatic amino acids. Resistance was mecillinam ppGpp abolished in a Delta-Delta relA strain spoT completely fault attributed by inserting and so it depends on the presence of ppGpp. Furthermore, the appearance of the pool ppGpp increased about twice in a RelA + strain. However, this increase was not observed in RelA strains, although the beginning nor mecillinam conferred resistance in these environments that mecillinam has a resistance, not due to an increased pool ppGpp. Resistance was also in a ftsZ84 (Ts) strain in terms semipermissive repealed and Arok :: Tn10 allele mini partially ftsZ84 (Ts) is deleted; but it does not increase the concentration of cell division FtsZ protein. Insertion substantially reduces or eliminates the activity of the AROK shikimate kinase in vivo and in vitro. Both shikimate kinase E. coli are not equivalent; loss Arok gives resistance to mecillinam, while the loss of Arol, no. In addition, the mutation to Arok resilience of mecillinam shown polar effects on the expression of the operon and the impact on the availability of aromatic amino acids or shikimic acid to be independent. Instead, we conclude that the protein Arok, can give a second activity related to the regulation of cell division, which Mecillinam sensitivity. We were with a Arok shikimate allele mutant lacking kinase activity to separate, but to give the mutations still Arok activities mecillinam sensitivity measurement.

Tobramycin price

Product Name: Tobramycin
CAS: 32986-56-4
Molecular formula: C18H37N5O9
Molecular Weight: 32986-56-4
Product Description: This product is for Pseudomonas aeruginosa, Proteus (indole female and male), Escherichia coli, Klebsiella bacteria, e coli bacteria Mr. Charest and staphylococci (including methicillin resistant strains that are resistant to penicillin G), caused by neonatal. sepsis, septicemia, an infection of the central nervous system (meningitis), urogenital infections, lung infection, biliary tract infection, abdominal infection (peritonitis), bone infections, skin infections and soft tissue (including burns) , otitis average acute and chronic sinusitis, etc. product for Pseudomonas aeruginosa meningitis or ventricle inflammation can administration of medicaments by intrathecal injection is used at the same time; If the infection is used in the bronchia and lungs, may inhalation gas product at the same time the resolution of the auxiliary treatment.

Buy Cefpirome


Product Name: cefpirome
CAS: 84957-29-9
Molecular formula: C22H22N6O5S2
Molecular Weight: 514.58
Product Description: With a broad spectrum of antibacterial activity on Staphylococcus resistant to penicillin pneumococci and enterococci aureus are effective. The obvious effect of Pseudomonas aeruginosa with cephalosporins, he likes to have a lot of antimicrobial resistance in pathogenic bacteria a good curative effect. Allergic reactions such as rash, diarrhea and other gastrointestinal disturbances and mild reversible variation of clinical dosage mainly for severe respiratory, urinary tract infections, skin infections and soft tissue, etc. cephalosporins ROM is used with fewer side effects, better tolerability, side effects are similar to the first generation cephalosporin.

Cefprozil hydrate

The effect on the bacterial flora tonsils antimicrobial therapy with penicillin or a cephalosporin of second generation (cefprozil) was examined. Sixty children scheduled for tonsillectomy for recurrent tonsillitis group A beta-hemolytic streptococcus participated in a prospective randomized study, they divided into three groups. One group received no treatment, and the others received either penicillin or cefprozil for 10 days before surgery. The patient's tonsil core was cultured for aerobic bacteria. Beta-hemolytic streptococcus A (GABHS) were 15/20 (75%) was isolated from treatment, 20/11 (55%), penicillin and 20/02 (10%) of cefprozil group (p < 0.001). producing bacteria thirty-two beta-lactamase recovered from 19/20 (95%) were treated untreated, 33 to 17/20 (85%), penicillin and treat six 20/04 (20%) with cefprozil (P <0.01). streptococci (AHS) GABHS alpha-hemolytic inhibitors were treated less frequently isolated from patients with penicillin. These data illustrate the ability of a cephalosporin second generation GABHS eliminate, as well as beta-lactamase producing bacteria while maintaining AHS.