形式
solid
质量水平
mp
171 °C (dec.) (lit.)
λmax
531 nm
储存温度
2-8°C
SMILES字符串
CC(C)(C)CC(C)(C)c1ccc(cc1)N([N]c2c(cc(cc2[N+]([O-])=O)[N+]([O-])=O)[N+]([O-])=O)c3ccc(cc3)C(C)(C)CC(C)(C)C
InChI
1S/C34H44N5O6/c1-31(2,3)21-33(7,8)23-11-15-25(16-12-23)36(26-17-13-24(14-18-26)34(9,10)22-32(4,5)6)35-30-28(38(42)43)19-27(37(40)41)20-29(30)39(44)45/h11-20H,21-22H2,1-10H3
InChI key
CLOCMRDQPYXVKP-UHFFFAOYSA-N
一般描述
2,2-二(4-叔辛基苯基)-1-苦基肼基(DPPH)是一种“稳定”的自由基，因为它的保质期长，并可在一般的实验室条件下合成和储存。
应用
2,2-二(4-叔辛基苯基)-1-苦基肼基(DPPH)可作为电子顺磁共振光谱法(EPR)的校准标准品，以及聚合物的自由基清除剂。也可作为“DPPH比色法”的有效试剂，用于检测各种化合物（大部分为酚类）的自由基清除能力。DPPH与抗氧化剂反应后，颜色从深紫色变成浅黄色，通过分光光度法可测定抗氧化剂活性。
WGK
WGK 3
闪点(°F)
Not applicable
闪点(°C)
Not applicable
DPPH (2, 2-di (4-tert-octylphenyl)-1-picrylhydrazyl) radical scavenging mixed-mode colorimetric assay (s)
Measurement of Antioxidant Activity and Capacity: Recent Trends and Applications, 141-164 (2017)
Zeynep Akar et al.
Journal of enzyme inhibition and medicinal chemistry, 32(1), 640-647 (2017-03-07)
2,2-Diphenyl-1-picrylhydrazyl (DPPH•) radical scavenging, the most commonly used antioxidant method with more than seventeen thousand articles cited, is very practical; however, as with most assays, it has the major disadvantage of dependence on a spectrophotometer. To overcome this drawback, the
Ramona Figat et al.
Molecules (Basel, Switzerland), 25(5) (2020-03-04)
Traditional medicinal plants are an important source of active compounds with potential antimutagenic activity. Polyscias filicifolia Bailey (Araliaceae) is a South Asian traditional herb used as an adaptogenic and cardiac drug. Extracts of P. filicifolia contain a wide range of
Huanhuan Xu et al.
Frontiers in cell and developmental biology, 8, 822-822 (2020-10-06)
Caffeine is chemically stable and not readily oxidized under normal physiological conditions but also has antioxidant effects, although the underlying molecular mechanism is not well understood. Superoxide dismutase (SOD) 2 is a manganese-containing enzyme located in mitochondria that protects cells
Jian-Xin Diao et al.
Chinese journal of integrative medicine, 26(10), 736-744 (2019-11-27)
To investigate the phenolic composition, antioxidant properties, and hepatoprotective mechanisms of polyphenols from green tea extract (GTP) in carbon tetrachloride (CCl4)-induced acute liver injury mouse model. High-performance liquid chromatography was used to analyze the chemical composition of the extract. Antioxidant
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