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Merck
CN
所有图片(1)

主要文件

D9132

Sigma-Aldrich

2,2-联苯基-1-苦基肼基

别名:

1,1-二苯基-2-苦肼基自由基, 2,2-二苯基-1-苦基肼, DPPH

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选择尺寸

5 G
¥3,801.15

¥3,801.15

目录价¥5,430.22节省 30%

国内现货,预计发货时间2025年4月27日详情


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选择尺寸

变更视图
5 G
¥3,801.15

About This Item

经验公式(希尔记法):
C18H12N5O6
CAS号:
分子量:
394.32
Beilstein:
1846081
EC 号:
MDL编号:
UNSPSC代码:
12352127
PubChem化学物质编号:
NACRES:
NA.22

¥3,801.15

目录价¥5,430.22节省 30%

国内现货,预计发货时间2025年4月27日详情


获取大包装报价

表单

powder

质量水平

颜色

green

mp

~135 °C (dec.) (lit.)

储存温度

2-8°C

SMILES字符串

[O-][N+](=O)c1cc(c([N]N(c2ccccc2)c3ccccc3)c(c1)[N+]([O-])=O)[N+]([O-])=O

InChI

1S/C18H12N5O6/c24-21(25)15-11-16(22(26)27)18(17(12-15)23(28)29)19-20(13-7-3-1-4-8-13)14-9-5-2-6-10-14/h1-12H

InChI key

HHEAADYXPMHMCT-UHFFFAOYSA-N

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此商品
D199303P2410167334
二苯醚 ReagentPlus®, 99%

P24101

二苯醚

二苯醚 Selectophore™, ≥99.9%

67334

二苯醚

Quality Level

100

Quality Level

200

Quality Level

200

Quality Level

200

mp

~135 °C (dec.) (lit.)

mp

197-200 °C (lit.)

mp

25-27 °C (lit.)

mp

25-27 °C (lit.), 27-29 °C

storage temp.

2-8°C

storage temp.

-

storage temp.

-

storage temp.

-

form

powder

form

-

form

crystals

form

solid

color

green

color

-

color

-

color

-

一般描述

2,2-二苯基-1-苦基肼是一种对抗氧化剂显示出氢受体能力的自由基。[1]因此,它常用于测量不同天然样品如酒、水果[2]、凉茶等[3]抗氧化活性的DPPH检测。

应用

  • Stable p-radical 2,2-diphenyl-1-picrylhydrazyl (DPPH) adsorbed at the elbows of 22×3 reconstructed Au (111)(22×3重构金(111)肘位吸附稳定p-自由基2,2-二苯基-1-苦基肼基(DPPH)):该文主要研究单分子级别的稳定有机自由基DPPH,探索其在金表面的吸附和作用特性,对于了解亚纳米级无金属磁现象非常重要(R Vranik et al., 2020)。

其他说明

自由基

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产品编号
说明
价格

警示用语:

Danger

危险分类

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Resp. Sens. 1 - Self-react. C - Skin Irrit. 2 - Skin Sens. 1

储存分类代码

4.1A - Other explosive hazardous materials

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable

  • 技术规格说明书

  • 历史批次信息供参考:

    分析证书(COA)

    Lot/Batch Number

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    1. Which document(s) contains shelf-life or expiration date information for a given product?

      If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

    2. How do I get lot-specific information or a Certificate of Analysis?

      The lot specific COA document can be found by entering the lot number above under the "Documents" section.

    3. How do I find price and availability?

      There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

    4. What is the Department of Transportation shipping information for this product?

      Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

    5. What is the solubility of 2,2-Diphenyl-1-picrylhydrazyl, DPPH, Product D9132?

      We would expect this material to be soluble in chloroform and methanol. Quality control testing shows that a concentration of about 50mg/mL in chloroform can be achieved.

    6. At what wavelength is the absorbance maximum (lambda max) for 2,2-Diphenyl-1-picrylhydrazyl, DPPH, Product D9132?

      Using chloroform as the solvent, the lambda max is approximately 332 nm.

    7. What is the extinction coefficient of 2,2-Diphenyl-1-picrylhydrazyl, DPPH, Product D9132?

      The millimolar extinction coefficient (EmM) has been reported to be 19.07 in chloroform, measured at a wavelength of 332 nm. Reference: Organic Electronic Spectra Data (OESD), 1, p. 753 (1946-1952).

    8. My question is not addressed here, how can I contact Technical Service for assistance?

      Ask a Scientist here.

    Determination of in vitro antidiabetic effects, antioxidant activities and phenol contents of some herbal teas.
    Buyukbalci A and Sedef Nehir El.
    Plant Foods For Human Nutrition, 63(1), 27-33 (2008)
    Influence of solvent composition on antioxidant potential of model polyphenols and red wines determined with 2, 2-diphenyl-1-picrylhydrazyl.
    Bertalanic L, et al.
    Journal of Agricultural and Food Chemistry, 60(50), 12282-12288 (2012)
    Studies on the antioxidants. XIII. Hydrogen donating capability of antioxidants to 2, 2-diphenyl-1-picrylhydrazyl.
    KuREcHI T, et al.
    Chemical & Pharmaceutical Bulletin, 28(7), 2089-2093 (1980)
    Višnja Stepanić et al.
    Antioxidants (Basel, Switzerland), 8(4) (2019-04-10)
    Chalcones are polyphenolic secondary metabolites of plants, many of which have antioxidant activity. Herein, a set of 26 synthetic chalcone derivatives with alkyl substituted pyrazine heterocycle A and four types of the monophenolic ring B, were evaluated for the potential
    Thamizhiniyan Venkatesan et al.
    Journal of pharmaceutical analysis, 9(3), 193-200 (2019-07-13)
    Pinus densiflora needle extract (PDNE) is widely reported to have many pharmacological activities including antioxidant potential. However, the solvent system used for extraction greatly affects its antioxidant quality. Hence, in the present study, we investigated the effect of a different

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