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Page Views: 15 Date Added: 11/06/2009 Last Updated: 11/06/2009 Expiry Date: 11/04/2019 Description: • High-molecular weight PEG, e.g., PEG 8000, has been shown to be a dietary preventive agent against colorectal cancer in animal models. The Chemoprevention Database shows it is the most effective agent to suppress chemical carcinogenesis in rats. Cancer prevention in humans has not yet been tested in clinical trials. • The injection of PEG 2000 into the bloodstream of guinea pigs after spinal cord injury leads to rapid recovery through molecular repair of nerve membranes. The effectiveness of this treatment to prevent paraplegia in humans after an accident is not known yet. • Research is being done in the use of PEG to mask antigens on red blood cells. Various research institutes have reported that using PEG can mask antigens without damaging the functions and shape of the cell. PEG is being used in the repair of motor neurons damaged in crush or laceration incidence in vivo and in vitro. When coupled with melatonin, 75% of damaged sciatic nerves were rendered viable. Other uses PEG is used in a number of toothpastes as a dispersant; it binds water and helps keep gum uniform throughout the toothpaste. It is also under investigation for use in body armor[14] and tattoos to monitor diabetes. PEG is a popular precipitant for protein crystallization, X-ray diffraction of protein crystals can reveal the atomic structure of proteins. Since PEG is a flexible, water-soluble polymer, it can be used to create very high osmotic pressures (tens of atmospheres). It also is unlikely to have specific interactions with biological chemicals. These properties make PEG one of the most useful molecules for applying osmotic pressure in biochemistry experiments, particularly when using the osmotic stress technique. When working with phenol in a laboratory situation, PEG 300 can be used on phenol skin burns to deactivate any residual phenol. PEG is traditionally also one of the main ingredients in Paintball fill because it is thick and flexible. However, as early as 2006, some Paintball manufacturers have been substituting PEG with cheaper alternatives. PEG has also been used to preserve objects which have been salvaged from underwater, as was the case with the warship Vasa in Stockholm. and the Mary Rose in England. It replaces water in wooden objects, which makes the wood dimensionally stable and prevents warping or shrinking of the wood. PEG is often seen (as an internal calibration compound) in mass spectrometry experiments, with a characteristic fragmentation pattern. In the field of microbiology, PEG precipitation is used to concentrate viruses and PEG is also used to induce complete fusion (mixing of both inner and outer leaflets) in liposomes reconstituted in vitro. PEG is also used in lubricant eye drops. PEG derivatives such as narrow range ethoxylates are used as surfactants. Dimethyl ethers of PEG are the key ingredient of Selexol, a solvent used by coal-burning, integrated gasification combined cycle (IGCC) power plants to remove carbon dioxide and hydrogen sulfide from the gas waste stream. PEG has been used as the hydrophilic block of amphiphilic block copolymers used to create some polymersomes. Gene therapy vectors (such as viruses) can be PEG-coated to shield them from inactivation by the immune system and to de-target them from organs where they may build up and have a toxic effect. The size of the PEG polymer has been shown to be important, with large polymers achieving the best immune protection. PEG is used as an excipient in pharmaceutical products. Lower molecular weight variants are used as solvents in oral liquids and soft capsules whereas solid variants are used as ointment bases, tablet bindings, film coatings and lubricants. Additional photos Polyethylene Glycol(PEG200,PEG300,PEG400,PEG600) PEG1500,PEG1000,PEG2000 PEG800,PEG4000,PEG6000,PEG8000,PEG10000,PEG20000

Company Information (Wuhan Xinhenglong Industrial and Trading Co., Ltd)

Company Profile: Wuhan Xinhenglong Industry and Trading Co.,Ltd is located in Wuhan city of Hubei province which is famous for the good name of “nine-province thoroughfare”. It engages in fine chemicals R&D with integration of sales and production. Our company is qualified to be a general taxpayer, and is entitled to import and export products. We will provide quality products and service to customers of various demands. Products in our company contain chemical raw materials,pharmaceutical necessities,medicinal intermediate,crude drug, plant extracts, mechanical equipment etc. These products are mostly applied to chemical industry and neighboring line such as medicine, food, Health care, painting, printing ink, plastics, reagent, electronic ceramics etc. Our company holds the spirit of “honesty,quality first and service-oriented,industrious,and enterprising,pragmatic,innovative,feature development,harmony and win-win policy”.We will make great effort to provide quality products and service to our old and new customers. Website URL: http://www.wuhanxhl.com Year Established: 2000 Products/Service: Pharmaceutical Raw Materials,Pharmaceutical Excipients(Carbomer Series,PEG Series,Alcohol Series,PVP Series API（Melatonin, Metronidazole, tetracycline hydroch, Amoxicillin, Ampicillin, Ampiciline, Azithromycin，terramycin, Analgin) Medicinal Intermediate(Plant extract，HERBA, Notoginseng, Notoginseng,, Asiaticoside, Centella, camptothecine, 10-hydroxycamptothec , Asiatic) Chemicals（Daily Chemical *industrial raw materials） Natural Fatty series（Theanine, SORBITOL, Aspartame, PVPP）

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