2,2-联苯基-1-苦基肼基 - CAS:1898-66-4 - CAS号查询_生物试剂_化学试剂_分析试剂

中文名称:	2,2-联苯基-1-苦基肼基促销
英文名称:	2,2-Diphenyl-1-picrylhydrazyl
别名:	2,2-联苯基-1-苦基肼基 DPPH;2,2-Diphenyl-1-picrylhydrazyl
CAS No:	1898-66-4	分子式:	C₁₈H₁₂N₅O₆	分子量:	394.32
CAS No:	1898-66-4
分子式:	C₁₈H₁₂N₅O₆
分子量:	394.32
MDL:	MFCD00007231	EINEC:	217-591-8
EINEC:	217-591-8

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D80002 2,2-联苯基-1-苦基肼基 ≥98% (psaitong)

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熔点：

~135 °C

外观与性状：

绿色或黑色粉末

包装规格：

250mg 1g 5g in glass bottle

溶解性：

溶于氯仿、乙醚和DMF。

产品描述：

基本信息

产品编号：	D80002
产品名称：	2,2-Diphenyl-1-picrylhydrazyl
CAS:	1898-66-4	储存条件	粉末	2-8℃	四年

分子式：	C18H12N5O6		溶于液体	-80℃	六个月
分子量	394.32			-20℃	一个月
化学名：
Solubility (25°C)：
体外:	DMSO	25mg/mL (63.40mM; Need ultrasonic)
	Ethanol	1mg/mL (2.54mM; Need ultrasonic)
	Water
体内(现配现用):	1.请依序添加每种溶剂：10% DMSO→40% PEG300→5% Tween-80→45% saline Solubility: ≥ 2.08mg/mL (5.27mM); Clear solution
	此⽅案可获得 ≥ 2.08mg/mL (5.27mM，饱和度未知) 的澄清溶液。以 1mL ⼯作液为例，取 100μL 20.8mg/mL 的澄清 DMSO 储备液加到 400μL PEG300 中，混合均匀；向上述体系中加⼊ 50μL Tween-80，混合均匀；然后继续加⼊ 450μL ⽣理盐⽔定容⾄ 1mL。
＜1mg/ml表示微溶或不溶。
普西唐提供的所有化合物浓度为内部测试所得，实际溶液度可能与公布值有所偏差，属于正常的批间细微差异现象。
请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；⼀旦配成溶液，请分装保存，避免反复冻融造成的产品失效。

制备储备液

浓度溶液体积质量	1mg	5mg	10mg
1mM	2.5360mL	12.6801mL	25.3601mL
5mM	0.5072mL	2.5360mL	5.0720mL
10mM	0.2536mL	1.2680mL	2.5360mL

生物活性

产品描述

一个敏感的比色法测定自由基清除剂

体外研究

DPPH shows a strong absorption band at 517nm 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 0.5mM 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

保存条件：

2-8℃

UN码：

HazardClass：

危害声明：

安全说明：

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