| Customization: | Available |
|---|---|
| CAS No.: | 9001-32-5 |
| Formula: | C6h14o6 |
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Hunan Yunbang Pharmaceutical Co., Ltd. (Yunbangpharm) located in Changsha High-tech Industrial Park, Hunan. It is a high-tech enterprise specializing in the research and development, production and sales of Pharmaceutical raw materials, Pharmaceutical intermediates(API) and Fine chemicals. Based in China, Yunbangpharm has been providing suitable solutions for many domestic,foreign pharmaceutical companies and traders. Excellent quality, good reputation and authentic price have won the praise of the majority of customers.
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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.
| Product Name: | HUMAN FIBRINOGEN |
| Synonyms: | Fibrinogen from Bovine, fraction I;Fibrinogen from bovine plasma,Factor I;Fibrinogen froM huMan;human fibrinogen dried;Parenogen;FIBRINOGEN, HUMAN PLASMA;FIBRINOGEN, MOUSE PLASMA;FIBRINOGEN, PIG PLASMA |
| CAS: | 9001-32-5 |
| MF: | C6H14O6 |
| MW: | 182.17176 |
| EINECS: | 232-598-6 |
| Product Categories: | |
| Mol File: | 9001-32-5.mol |
| storage temp. | -20°C |
| solubility | 0.9% NaCl: soluble |
| form | powder |
| color | white |
| EPA Substance Registry System | Fibrinogens (9001-32-5) |
| Safety Information |
| Hazard Codes | B |
| WGK Germany | 3 |
| F | 10-21 |
| TSCA | Yes |
| Chemical Properties | White or grayish amorphous substance. |
| Uses | A soluble plasma glycoprotein, produced by the liver, that is converted by thrombin into fibrin during the blood coagulation process. Fibrinogen is a natural blood protein involved in the coagulation process. It is used instead of traditional sources of fibrinogen such as the blood products, fresh frozen plasma and cryoprecipitate. It helps in blood clot formation. |
| Uses | Diagnostic aid (vascular patency); radioactive agent. |
| Definition | A sterile fraction of normal human blood plasma, dried from the frozen state. In solution, it has the property of being converted into insoluble fibrin when thrombin is added. It is an essential factor in the blood-clotting mechanism. |
| General Description | Fibrinogen, or Factor I, is a blood protein that is involved in clotting and is converted to fibrin by thrombin. Fibrinogen has an approximate molecular weight of 340 kDa |
| Biochem/physiol Actions | Fibrinogen is an acute phase protein that is part of the coagulation cascade of proteins. The end result of the cascade is the production of thrombin that converts fibrinogen to fibrin. Thrombin rapidly proteolyses fibrinogen, releasing fibrinopeptide A. The loss of this small peptide is not sufficient to make the resulting fibrin molecule insoluble, but it tends to form complexes with adjacent fibrin and fibrinogen molecules. Thrombin then cleaves a second peptide, fibrinopeptide B, from fibrin and the fibrin monomers formed then polymerize spontaneously to form an insoluble gel. The polymerized fibrin is held together by noncovalent and electrostatic forces and stabilized by the transamidating enzyme, factor XIIIa, that is produced by the action of thrombin on factor XIII. The insoluble fibrin aggregates (clots) and aggregated platelets then block the damaged blood vessel and prevent further bleeding. The amount of fibrinogen in the plasma can serve as a nonspecific indicator of whether or not an inflammatory process is present in the body. Fibrinogen from any mammalian source will be cleaved by thrombin from any mammalian source. |
| Purification Methods | A likely impurity is plasminogen. It is purified by glycine precipitation [Mosesson & Sherry Biochemistry 5 2829 1966] to obtain fractions 1-2, then further purified [Blomb.ck & Blomb.ck Arkiv Kemi 10 415 1956] and contaminating plasminogen is removed by passage through a lysine-Sepharose column. Such preparations are at least 95% clottable as determined by Mosesson and Sherry's method (above ref.) in which the OD280 is measured before and after clotting with 5 Units/mL of thrombin (> 3000U/mg). All fibrinogen preparations are treated with calf intestinal alkaline phosphatase to convert any fibrinogen peptide-AP to fibrinogen peptide-A by removing serine-bound phosphate. Solutions are then lyophilised and stored at -20o. [Higgins & Shafer J Biol Chem 256 12013 1981.] It is sparingly soluble in H2O. Aqueous solutions are viscous with isoelectric point at pH 5.5. It is readily denatured by heating above 56o or by chemical agents, e.g. salicylaldehyde, naphthoquinone sulfonates, ninhydrin or alloxan. [Edsall et al. J Am Chem Soc 69 2731 1947, Purification: Cama et al. Naturwissenschaften 48 574 1961, Lorand & Middlebrook Science 118 515 1953, cf. Fuller in Methods Enzymol 163 474 1988.] For plasminogen-deficient fibrinogen from blood plasma, the anticoagulated blood is centrifuged and the plasma is frozen and washed with saline solution. It is treated with charcoal, freeze-thawed and dialysed versus Tris/NaCl buffer. [Maxwell & Nikel Biochemical Preparations 12 16 1968.] |
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