2,2-联苯基-1-苦基肼基
中文名称 | 2,2-联苯基-1-苦基肼基 |
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中文同义词 | 2,2 -二苯基-1-苦肼基,自由基;1-二苯-2-苦基肼;2,2-联苯基-1-苦基肼基(含10-20%苯);1,1-二苯-2-苦肼基;A,A二苯基Β苦基肼基游离基;2,2-二苯基-1-苦基肼;2,2-联苯基-1-苦基肼基(FREE RADICAL);1,1-二苯-2-苦基肼,1,1-二苯基-2-苦味基肼自由基,2,2-联苯基-1-苦基肼基 |
英文名称 | 2,2-diphenyl-1-picrylhydrazyl |
英文同义词 | 2,2-Diphenyl-1-picrylhydrazyl,1,1-Diphenyl-2-picrylhydrazyl radical, 2,2-Diphenyl-1-(2,4,6-trinitrophenyl)hydrazyl, DPPH;1-diphenyl-2-picrylhydrazyl;1,1-Diphenyl-2-picrylhydrazyl (DPPH);2,2-Diphenyl-1-(2,4,6-trinitrophenyl)-hydrazyl (DPPH);1,1-Diphenyl-2-picrylhydrazyl radical, 2,2-Diphenyl-1-(2,4,6-trinitrophenyl)hydrazyl, DPPH;1,1-Diphenyl-2-picrylhydrazyl Free Radical (contains 10-20% Benzene);[1-(2,4,6-Trinitrophenyl)-2,2-diphenylhydrazino]radical;2,2-Diphenyl-1-(2,4,6-trinitrophenyl)hydrazino radical |
CAS号 | 1898-66-4 |
分子式 | C18H12N5O6* |
分子量 | 394.32 |
EINECS号 | 217-591-8 |
相关类别 | 有机砌块;化学试剂;有机化合物;通用试剂;肼;Aromatic Hydrazides, Hydrazines, Hydrazones and Oximes;DPPH;对照品;其他生化试剂;试剂;有机化工原料;合成材料中间体;中药对照品;试剂盒-细胞分析试剂盒 |
Mol文件 | 1898-66-4.mol |
结构式 | ![]() |
2,2-联苯基-1-苦基肼基 性质
熔点 | ~135 °C (dec.)(lit.) |
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密度 | 1.484 g/cm3 |
储存条件 | 2-8°C |
溶解度 | 乙腈(微溶)、氯仿(微溶)、DMSO(微溶)、甲醇(微溶) |
形态 | 固体 |
颜色 | 绿色 |
水溶解性 | Soluble in dimethyl formamide, ethanol, chloroform, ether, carbon disulfinde, acetone, oils, carbon tetrachloride, glacial acetic acid and toluene. Insoluble in water. |
最大波长(λmax) | 515nm(MeOH)(lit.) |
Merck | 14,3330 |
BRN | 1846081 |
稳定性 | 震动敏感 |
EPA化学物质信息 | Hydrazyl, 2,2-diphenyl-1-(2,4,6-trinitrophenyl)- (1898-66-4) |
DPPH shows a strong absorption band at 517 nm due to its odd electron and solution appears a deep violet colour, the absorption vanishes as the electron pairs off. The resulting decolorization is stoichiometric with respect to the number of electrons taken up. The alcoholic solutions of 0.5 mM are densely colored and at this concentration, the Lambert-Beer law is obeyed over the useful range of absorption.
DPPH assay is a rapid, simple, inexpensive and widely used method to measure the ability of compounds to act as free radical scavengers or hydrogen donors, and to evaluate antioxidant activity of foods. It can also be used to quantify antioxidants in complex biological systems, for solid or liquid samples. This method is easy and applies to measure the overall antioxidant capacity and the free radical scavenging activity of fruit and vegetable juice. This assay has been successfully utilized for investigating antioxidant properties of wheat grain and bran, vegetables, conjugated linoleic acids, herbs, edible seed oils, and flours in several different solvent systems including ethanol, aqueous acetone, methanol, aqueous alcohol and benzene. It is a convenient method for the antioxidant assay of cysteine, glutathione, ascorbic acid, tocopherol and polyhydroxy aromatic compounds, for olive oil, fruits, juices and wines.
安全信息
危险品标志 | Xn |
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危险类别码 | 42/43 |
安全说明 | 22-36/37-45 |
危险品运输编号 | UN2811 |
WGK Germany | 1 |
RTECS号 | MW3250000 |
TSCA | Yes |
危险等级 | 6.1 |
包装类别 | II |
海关编码 | 29280000 |
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