Merck
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文件

39579

Sigma-Aldrich

2,5-二甲基-对苯醌

≥98.0%

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别名:
2,5-Dimethyl-2,5-cyclohexadiene-1,4-dione, 2,5-Dimethyl-p-benzoquinone, 2,5-Dimethyl-p-quinone, 2,5-Dimethylbenzoquinone, 2,5-Xyloquinone, 3,6-Dimethyl-p-benzoquinone
经验公式（希尔记法）:
C8H8O2
CAS号:
137-18-8
分子量:
136.15
Beilstein:
2041348
EC 号:
205-283-6
MDL编号:
MFCD00041737
PubChem化学物质编号:
57649863
NACRES:
NA.22

检测方案

≥98.0%

mp

123-125 °C

溶解性

toluene: soluble 0.5 g/10 mL, clear to faintly turbid, yellow to brown

SMILES字符串

CC1=CC(=O)C(C)=CC1=O

InChI

1S/C8H8O2/c1-5-3-8(10)6(2)4-7(5)9/h3-4H,1-2H3

InChI key

MYKLQMNSFPAPLZ-UHFFFAOYSA-N

相关类别

一般描述

2,5-二甲基-1,4-苯醌是醌衍生物。在 pH 7.8 的磷酸盐缓冲液中研究了其与刀豆脲酶的反应。它是棘头虫防御性分泌的成分之一。在 pH 7.0 的 50 mM 磷酸盐缓冲液中，对其作为刀豆脲酶抑制剂进行了研究。

应用

2,5-二甲基-1,4-苯醌可能用于参与 (-) -胱抑素 A 3 全合成的关键步骤。

象形图

Skull and crossbones
GHS06

警示用语：

Danger

危险分类

Acute Tox. 3 Oral - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

靶器官

Respiratory system

储存分类代码

6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 3

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

dust mask type N95 (US), Eyeshields, Faceshields, Gloves

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Wiesława Zaborska et al.
Journal of enzyme inhibition and medicinal chemistry, 17(4), 247-253 (2003-01-18)
1,4-benzoquinone (BQ) and 2,5-dimethyl-1,4-benzoquinone (DMBQ) were studied as inhibitors of jack bean urease in 50 mM phosphate buffer, pH 7.0. The mechanisms of inhibition were evaluated by progress curves studies and steady-state approach to data achieved by preincubation of the
M Floreani et al.
The Journal of pharmacology and experimental therapeutics, 260(2), 468-473 (1992-02-01)
In guinea pig and rat cardiac tissue, redox cycling benzoquinones (2,5-dimethyl-p-benzoquinone and duroquinone) and naphthoquinones (menadione and 2,3-dimethoxy-1,4-naphthoquinone) generated superoxide anion (O2-.) both through one- and two-electron reductions, the generation being significantly greater in guinea pig than in rat tissue.
Thomas Eisner et al.
The Journal of experimental biology, 207(Pt 8), 1313-1321 (2004-03-11)
The opilionid Acanthopachylus aculeatus was shown to produce a defensive secretion containing quinones (2,3-dimethyl-1,4-benzoquinone, 2,5-dimethyl-1,4-benzoquinone and 2,3,5-trimethyl-1,4-benzoquinone), confirming the findings reported nearly a half century ago in a classic study. The mechanism by which the opilionid puts the secretion to
T Yagi et al.
Journal of bioenergetics and biomembranes, 8(5), 247-255 (1976-10-01)
The regulation by adenylates of activities of various partial electron transport systems in spinach chloroplasts was studied using systems from H2O to 2,5-dimethyl-p-benzoquinone, H2O to 2,6-dichlorophenolindophenol, reduced 2,6-dichlorophenolindophenol to methyl viologen, and H2O to methyl viologen or ferricyanide. Adenylates regulated
Dale E Ward et al.
Organic letters, 9(15), 2843-2846 (2007-06-22)
The total synthesis of (-)-cyathin A3 is described. The key step involves an unusual enantioselective Diels-Alder reaction of 2,5-dimethyl-1,4-benzoquinone with 2,4-bis(trimethylsilyloxy)-1,3-pentadiene, using Mikami's catalyst [(R)-BINOL + Cl2Ti(OiPr)2 + 4 A mol sieves] modified by addition of Mg and SiO2. Because
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