| 货号 | 品牌 | 产品名称 | 规格 | 包装、参考价格 | 详情 |
| V910871 | MACKLIN | 紫黄质 | 90% (HPLC) | 15755元/1mg; | 展开 |
储存:-20°C,密闭,干燥,惰性气体,避光 状态:橙色到暗橙色和微棕色到棕色和橙棕色和棕色-橙色粉末 折射率:1.4760 |
| 91904 | Supelco | Violaxanthin | analytical standard | 15730.4元/1 MG; | 展开 |
产品说明 一般描述 紫黄质是存在于大多数水果和蔬菜中的天然色素成分或类胡萝卜素。 应用 紫黄质可用作参考标准品,用于通过高效液相色谱法和光电二极管阵列检测测定水果和蔬菜中分析物。 基本信息 | 经验(实验)分子式 | C40H56O4 | | 分子量 | 600.87 | | Beilstein | 101269 | | NACRES | NA.24 |
产品性质 | 等级 | analytical standard | | 质量水平 | 100 | | 测定 | ≥95.0% (HPLC) | | 保质期 | limited shelf life, expiry date on the label | | technique(s) | HPLC: suitable gas chromatography (GC): suitable | | application(s) | cleaning products cosmetics food and beverages personal care | | 格式 | neat | | 储存温度 | −70℃ | | SMILES string | CC(/C=C/[C@@]12[C@](C)(O2)C[C@@H](O)CC1(C)C)=C\C=C\C(C)=C\C=C\C=C(C)\C=C\C=C(\C=C\[C@]34C(C)(C)C[C@H](O)C[C@]3(O4)C)C | | InChI | 1S/C40H56O4/c1-29(17-13-19-31(3)21-23-39-35(5,6)25-33(41)27-37(39,9)43-39)15-11-12-16-30(2)18-14-20-32(4)22-24-40-36(7,8)26-34(42)28-38(40,10)44-40/h11-24,33-34,41-42H,25-28H2,1-10H3/b12-11+,17-13+,18-14+,23-21+,24-22+,29-15+,30-16+,31-19+,32-20+/t33-,34-,37+,38+,39-,40-/m0/s1 | | InChI key | SZCBXWMUOPQSOX-WVJDLNGLSA-N |
安全信息 | 储存分类代码 | 11 - Combustible Solids | | WGK | WGK 3 | | 闪点(F) | Not applicable | | 闪点(C) | Not applicable |
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| 52444 | Sigma-Aldrich | Violaxanthin | ≥90.0% (HPLC) | 6886.03元/1 MG; | 展开 |
产品说明 一般描述 Violaxanthin is an epoxidized carotenoid obtained from plants. It is an orange-colored natural xanthophyll pigment. 应用 Violaxanthin has been used as a standard/control in high-pressure liquid chromatography (HPLC) analysis of pigment extracts to confirm the high-level astaxanthin accumulation suspected from the visual phenotype of Nt-AXT plants. 生化/生理作用 紫黄质是一种环氧胡萝卜素,是辣椒素的前体。它是参与绿色植物质体进化(氧进化)的三种叶黄素之一,并参与光诱导的相互转换,即紫黄质循环。9-顺式环氧类胡萝卜素(紫黄质)裂解为黄黄素是脱落酸生物合成的关键调控步骤。 Violaxanthin is a powerful antioxidant and a vital precursor to important compounds like fucoxanthin and β-damascenone. It is a non-photochemical fluorescence quenching structural component of the xanthophyll cycle that shields the photosynthetic system from excessive light. The 2,2′-azinobis-3-ethylbenzothiazoline-6-sulfonic acid (ABTS+) radical scavenging action of violaxanthin extracted from water spinach/water morning glory is strong, and it also inhibits lipid peroxidation and red blood cell hemolysis. Hence, it has the potential to be used in a wide range of medicinal and health products. 基本信息 | 经验(实验)分子式 | C40H56O4 | | 分子量 | 600.87 | | Beilstein | 101269 | | PubChem化学物质编号 | 329757838 | | NACRES | NA.32 |
产品性质 | 质量水平 | 100 | | 测定 | ≥90.0% (HPLC) | | λ | in ethanol | | 紫外吸收 | λ: 438-442 nm Amax | | 储存温度 | −20℃ | | SMILES string | CC(/C=C/[C@@]12[C@](C)(O2)C[C@@H](O)CC1(C)C)=C\C=C\C(C)=C\C=C\C=C(C)\C=C\C=C(\C=C\[C@]34C(C)(C)C[C@H](O)C[C@]3(O4)C)C | | InChI | 1S/C40H56O4/c1-29(17-13-19-31(3)21-23-39-35(5,6)25-33(41)27-37(39,9)43-39)15-11-12-16-30(2)18-14-20-32(4)22-24-40-36(7,8)26-34(42)28-38(40,10)44-40/h11-24,33-34,41-42H,25-28H2,1-10H3/b12-11+,17-13+,18-14+,23-21+,24-22+,29-15+,30-16+,31-19+,32-20+/t33-,34-,37+,38+,39-,40-/m0/s1 | | InChI key | SZCBXWMUOPQSOX-WVJDLNGLSA-N |
安全信息 | 储存分类代码 | 11 - Combustible Solids | | WGK | WGK 3 | | 闪点(F) | Not applicable | | 闪点(C) | Not applicable |
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