250mg Sigma 10931 Arachidonic acid;花生四烯酸
- 品牌：Sigma
- 型号：250mg Sigma 10931
- 产地：Sigma 10931 250mg
- 供应商：上海叶舟生物科技有限公司
- 供应商报价：920
- 标签：Arachidonic acid;花生四烯酸,920,上海叶舟生物科技有限公司
产品库
| Synonym: | cis,cis,cis,cis-5,8,11,14-Eicosatetraenoic acid, Eicosa-5Z,8Z,11Z,14Z-tetraenoic acid |
| CAS Number: | 506-32-1 |
| Linear Formula: | CH3（CH2）4（CH=CHCH2）4CH2CH2CO2H |
| Molecular Weight: | 304.47 |
| Beilstein Registry Number: | 1713889 |
| EC Number: | 208-033-4 |
| MDL number: | MFCD00004417 |
| PubChem Substance ID: | 24846907 |
| Biochem/physiol Actions | Arachidonic acid （AA） is an unsaturated ω6 fatty acid constituent of the phospholipids of cell membranes. Phospholipase A2 releases AA from the membrane phospholipids in response to inflammation. AA is subsequently metabolized to prostaglandins and thromboxanes by at least two cyclooxygenase （COX） isoforms, to leukotrienes and lipoxins by lipoxygenases, and to epoxyeicosatrienoic acids via cytochrome p450-catalyzed metabolism. AA and its metabolites play important roles in a variety of biological processes, including signal transduction, smooth muscle contraction, chemotaxis, cell proliferation and differentiation, and apoptosis. AA has been demonstrated to bind to the α subunit of G protein and inhibit the activity of Ras GTPase-activating proteins （GAPs）. Cellular uptake of AA is energy dependent and involves protein-facilitated transport across the plasma membrane. |
| Quality | Sigma-Aldrich will change the name of this product, eliminating the term "puriss." or "purum" beginning October, 2009. Please note that this is only a name change; the product qualities and specifications remain the same. |
| assay | >95.0% （GC） |
| refractive index | n20/D 1.4872（lit.） |
| bp | 169-171 °C/0.15 mmHg（lit.） |
| mp | −49 °C（lit.） |
| density | 0.922 g/mL at 25 °C（lit.） |
| shipped in | dry ice |
| storage temp. | −20°C |
| Personal Protective Equipment | Eyeshields, Faceshields, Gloves, half-mask respirator （EU）, half-mask respirator （US）, multi-purpose combination respirator cartridge （US） |
| Risk Statements | 19 |
| WGK Germany | 3 |
| RTECS | CE6675000 |
| Flash Point（F） | 235 °F |
| Flash Point（C） | 113 °C |
| 品名 | 产地 | 货号 | 规格 | 单价 | 备注 |
| 花生四烯酸Arachidonic acid | Sigma | 10931 | 250mg | 询价 | 现货 |
| 花生四烯酸Arachidonic acid | Sigma | 10931 | 1g | 询价 | 现货 |
