跳转至内容
Merck
CN

D8130

5,5′-二硫代双（2-硝基苯甲酸）

≥98%, BioReagent, suitable for determination of sulfhydryl groups

别名:

6,6′-二硝基-3,3′-二硫代苯甲酸, DTNB, Ellman 试剂, 二硫代硝基苯甲酸, 双(3-羧基-4-硝基苯基)二硫

登录 查看组织和合同定价。

选择尺寸

关于此项目

线性分子式:
[-SC6H3(NO2)CO2H]2
化学文摘社编号:
69-78-3
分子量:
396.35
UNSPSC Code:
12352106
NACRES:
NA.26
PubChem Substance ID:
24894189
EC Number:
200-714-4
Beilstein/REAXYS Number:
1896821
MDL number:
MFCD00007140

主要文件

查看所有文档
技术服务
需要帮助？我们经验丰富的科学家团队随时乐意为您服务。
让我们为您提供帮助
技术服务
需要帮助？我们经验丰富的科学家团队随时乐意为您服务。
让我们为您提供帮助

产品名称

5,5′-二硫代双（2-硝基苯甲酸）, ≥98%, BioReagent, suitable for determination of sulfhydryl groups

SMILES string

OC(=O)c1cc(SSc2ccc(c(c2)C(O)=O)[N+]([O-])=O)ccc1[N+]([O-])=O

InChI key

KIUMMUBSPKGMOY-UHFFFAOYSA-N

InChI

1S/C14H8N2O8S2/c17-13(18)9-5-7(1-3-11(9)15(21)22)25-26-8-2-4-12(16(23)24)10(6-8)14(19)20/h1-6H,(H,17,18)(H,19,20)

product line

BioReagent

assay

≥98%

form

powder

mp

240-245 °C (dec.) (lit.)

suitability

suitable for determination of sulfhydryl groups

Quality Level

200

正在寻找类似产品? 访问 产品对比指南

Application

Ellman′s试剂可用于乙酰胆碱酯酶的检测，并可对半胱氨酸残基进行特异性标记。该试剂是测定蛋白质、多肽和组织中游离巯基含量的敏感试剂。

General description

5,5′双二硫代(2-硝基苯甲酸)也称为DTNB或Ellman′s试剂。这是一种与巯基相互作用的水溶性试剂，在中性pH下方便地应用。硫代阴离子(RS-)与Ellman′s试剂(DTNB2-)反应生成2-硝基-5-硫代苯甲酸盐阴离子(TNB2-)和一种混合二硫化物(R-S-TNB-)。TNB2- 具有较高的摩尔吸收系数，在412nm处有吸收。这种吸收与pH无关，在pH>7.3。

存储类别

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
WXBF7740V
0000413693
0000413693
0000513656
0000513635

没有发现合适的版本？

如果您需要特殊版本，可通过批号或批次号查找具体证书。

搜索COA

已有该产品？

在文件库中查找您最近购买产品的文档。

访问文档库

Ellman's reagent: 5,5'-dithiobis(2-nitrobenzoic acid)--a reexamination.
P W Riddles et al.
Analytical biochemistry, 94(1), 75-81 (1979-04-01)
Reassessment of Ellman's reagent.
P W Riddles et al.
Methods in enzymology, 91, 49-60 (1983-01-01)
Christian K Riener et al.
Analytical and bioanalytical chemistry, 373(4-5), 266-276 (2002-07-12)
Since its introduction in 1959, Ellman's reagent (5,5'-dithio-bis(2-nitrobenzoic acid)) has been the favorite reagent for spectrophotometric measurement of protein sulfhydryls. Meanwhile however, evidence has accumulated that many protein sulfhydryls give an incomplete reaction with Ellman's reagent, even during prolonged assay
Venkaiah Betapudi et al.
Science translational medicine, 12(527) (2020-01-24)
Chemical warfare nerve agents are organophosphorus chemical compounds that induce cholinergic crisis, leaving little or no time for medical intervention to prevent death. The current chemical treatment regimen may prevent death but does not prevent postexposure complications such as brain
Anne Bertling et al.
Arteriosclerosis, thrombosis, and vascular biology, 32(8), 1979-1990 (2012-04-28)
Staphylococcus aureus can induce platelet aggregation. The rapidity and degree of this correlates with the severity of disseminated intravascular coagulation, and depends on platelet peptidoglycans. Surface-located thiol isomerases play an important role in platelet activation. The staphylococcal extracellular adherence protein
查看所有相关文献

实验方案

Enzymatic Assay of Chloramphenicol Acetyltransferase

To measure chloramphenicol acetyltransferase activity, this procedure uses DTNB and coenzyme A. The reaction of DTNB with the –SH group on CoA results in a colorimetric increase at 412 nm.

相关内容

Reagent Grades for Biochemistry Workflows

Find high-purity biochemicals for every workflow. Explore BioUltra, Molecular Biology, BioReagent, and reagent-grade materials qualified for performance.

Product Information Sheet - D8130

Product Information Sheet

我们的科学家团队拥有各种研究领域经验，包括生命科学、材料科学、化学合成、色谱、分析及许多其他领域.

联系客户支持