应用 应用 生物活性 体外研究 2,2-联苯基-1-苦基肼基 试剂级价格
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2,2-联苯基-1-苦基肼基

2,2-联苯基-1-苦基肼基,1898-66-4,结构式
2,2-联苯基-1-苦基肼基
  • CAS号:1898-66-4
  • 英文名:2,2-diphenyl-1-picrylhydrazyl
  • 中文名:2,2-联苯基-1-苦基肼基
  • CBNumber:CB8753025
  • 分子式:C18H12N5O6*
  • 分子量:394.32
  • MOL File:1898-66-4.mol
2,2-联苯基-1-苦基肼基化学性质
  • 熔点 :~135 °C (dec.)(lit.)
  • 密度 :1.484 g/cm3
  • 储存条件 :2-8°C
  • 溶解度 :Acetonitrile (Slightly), Chloroform (Slightly), DMSO (Slightly)
  • 形态 :Solid
  • 颜色 :green
  • 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 :Shock Sensitive
  • EPA化学物质信息 :Hydrazyl, 2,2-diphenyl-1-(2,4,6-trinitrophenyl)- (1898-66-4)
安全信息
  • 危险品标志 :Xn
  • 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

2,2-联苯基-1-苦基肼基性质、用途与生产工艺

  • 应用 A,A二苯基Β苦基肼基游离基即DPPH自由基,在特定波长下测定 DPPH 与抗氧化物质反应前后吸收值的变化可定量测定被测物质的抗氧化能力。DPPH 法是测定茶抗氧化性能的一种快速简便的方法,测定条件掌握得当,可以获得较好的测定稳定性。
  • 应用 2,2-联苯基-1-苦基肼基为有机肼化合物,可用作化学试剂。
  • 生物活性 DPPH (2,2-Diphenyl-1-picrylhydrazyl) 是一种稳定的自由基,可用于测量抗氧化剂的自由基清除活性。DPPH 中氮原子的奇数电子通过从抗氧化剂吸收氢原子而还原为相应的肼。DPPH 方法可用于水性和非极性有机溶剂中,并可用于检查亲水性和亲脂性抗氧化剂。
  • 体外研究

    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.

  • 用途  生化研究
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2,2-联苯基-1-苦基肼基 试剂级价格
  • 更新日期:2024/11/11
  • 产品编号:XW18986641
  • 产品名称:2,2-联苯基-1-苦基肼基 1,1-diphenyl-2-picrylhydrazyl;2,2-diphenyl-1-picrylhydrazyl;dpph
  • CAS编号:1898-66-4
  • 包装:250MG
  • 价格:298元
  • 更新日期:2024/11/08
  • 产品编号:044150
  • 产品名称:2,2-联苯基-1-苦基肼基 (自由基) 2,2-Diphenyl-1-picrylhydrazyl (free radical)
  • CAS编号:1898-66-4
  • 包装:250mg
  • 价格:576元
2,2-联苯基-1-苦基肼基生产厂家
  • 公司名称:上海道鞅科技有限公司
  • 联系电话:询价加3150471267 13381681725
  • 电子邮件:3150471267@qq.com
  • 国家:中国
  • 产品数:432
  • 优势度:58
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