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426369

Sigma-Aldrich

TEMPO

purified by sublimation, 99%

别名:

2,2,6,6-四甲基哌啶氧化物, 2,2,6,6-四甲基哌啶-1-氧自由基, TEMPO

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25 G
¥1,205.11
100 G
¥3,683.57

¥1,205.11

预计发货时间2025年9月29日详情

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25 G
¥1,205.11
100 G
¥3,683.57

About This Item

经验公式（希尔记法）:
C9H18NO
CAS号:
2564-83-2
分子量:
156.25
Beilstein:
1422418
EC 号:
219-888-8
MDL编号:
MFCD00009599
UNSPSC代码:
12352119
PubChem化学物质编号:
24866699
NACRES:
NA.22

¥1,205.11

预计发货时间2025年9月29日详情

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方案

99%

表单

solid

纯化方式

sublimation

反应适用性

reagent type: oxidant

mp

36-38 °C (lit.)

储存温度

2-8°C

SMILES字符串

CC1(C)CCCC(C)(C)N1[O]

InChI

1S/C9H18NO/c1-8(2)6-5-7-9(3,4)10(8)11/h5-7H2,1-4H3

InChI key

QYTDEUPAUMOIOP-UHFFFAOYSA-N

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此商品
GF10672938GF52059618GF61030011
Hafnium powder, 45 max. part. size (micron), weight 10 g, purity 95.0+%

GF96885387

Hafnium

Hafnium powder, max. particle size 45 micron, weight 20 g, purity 95.+%

GF10672938

Hafnium

Hafnium lump, 10 mm max. lump size, weight 100 g, purity 97.%

GF52059618

Hafnium

Hafnium lump, 10 mm max. lump size, weight 100 g, purity 97.%

GF61030011

Hafnium

form

powder

form

powder

form

lumps

form

lumps

assay

95.0%

assay

95.0%

assay

97.0%

assay

97%

mp

2227 °C (lit.)

mp

2227 °C (lit.)

mp

2227 °C (lit.)

mp

2227 °C (lit.)

density

13.3 g/cm3 (lit.)

density

13.3 g/cm3 (lit.)

density

13.3 g/cm3 (lit.)

density

13.3 g/cm3 (lit.)

bp

4602 °C (lit.)

bp

4602 °C (lit.)

bp

4602 °C (lit.)

bp

4602 °C (lit.)

一般描述

对于使用 NMP 引发剂的合成方案，由 Karen Wooley 教授提供，请访问我们的 技术聚光灯。

应用

利用 TEMPO（2,2,6,6-四甲基-1-哌啶氧基）捕集过氧苯甲酰自由基。[1]利用 TEMPO 介导氧化法制备了耐水纳米纤维纤维素 (NFC) 膜。[2]
稳定的硝基氧自由基可用于控制活性聚合

象形图

Corrosion
GHS05

警示用语：

Danger

危险声明

H314,H412

危险分类

Aquatic Chronic 3 - Eye Dam. 1 - Skin Corr. 1C

储存分类代码

8A - Combustible corrosive hazardous materials

WGK

WGK 2

闪点(°F)

152.6 °F - closed cup

闪点(°C)

67 °C - closed cup

个人防护装备

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

  • 技术规格说明书

    • 历史批次信息供参考:

    分析证书(COA)

    Lot/Batch Number
    0000373184
    0000373186
    0000324611
    0000296864
    0000296864

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    在文件库中查找您最近购买产品的文档。

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    Block copolymer synthesis using a commercially available nitroxide-mediated radical polymerization (NMP) initiator.
    Lee NS and Wooley KL.
    Material Matters, 5, 8-15 (2010)
    Jessica M Hoover et al.
    Journal of the American Chemical Society, 135(6), 2357-2367 (2013-01-16)
    Homogeneous Cu/TEMPO catalyst systems (TEMPO = 2,2,6,6-tetramethylpiperidine-N-oxyl) have emerged as some of the most versatile and practical catalysts for aerobic alcohol oxidation. Recently, we disclosed a (bpy)Cu(I)/TEMPO/NMI catalyst system (NMI = N-methylimidazole) that exhibits fast rates and high selectivities, even
    Akira Isogai et al.
    Nanoscale, 3(1), 71-85 (2010-10-20)
    Native wood celluloses can be converted to individual nanofibers 3-4 nm wide that are at least several microns in length, i.e. with aspect ratios>100, by TEMPO (2,2,6,6-tetramethylpiperidine-1-oxyl radical)-mediated oxidation and successive mild disintegration in water. Preparation methods and fundamental characteristics
    Hayaka Fukuzumi et al.
    Carbohydrate polymers, 93(1), 172-177 (2013-03-08)
    Various mechanical disintegration conditions in water were applied to 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO)-oxidized cellulose to prepare TEMPO-oxidized cellulose nanofibrils (TOCNs) of uniform widths ∼4 nm but with three different average lengths, 200, 680, and 1100 nm. The viscosity average degrees of polymerization
    Xinwang Cao et al.
    Carbohydrate polymers, 90(2), 1075-1080 (2012-07-31)
    Cellulose nanowhiskers is a kind of renewable and biocompatible nanomaterials evoke much interest because of its versatility in various applications. Here, for the first time, a novel controllable fabrication of cellulose nanowhiskers from jute fibers with a high yield (over
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    TEMPO催化氧化

    TEMPO（2,2,6,6-四甲基哌啶氧基或2,2,6,6-四甲基哌啶1-氧基）及其衍生物在有机氧化反应催化剂中可以作为稳定的硝酰基使用。TEMPO由Lebedev和Kazarnovskii于1960年发现，其具有的稳定自由基性质得益于其庞大的取代基团阻碍了自由基与其他分子之间发生反应。

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