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195596

Sigma-Aldrich

仲丁基锂 溶液

sec-Butyllithium solution
1 of 3 reviewers received a sample product or took part in a promotion

1.4 M in cyclohexane

别名:

2-丁基锂, s-BuLi

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About This Item

线性分子式:
CH3CH2CH(CH3)Li
CAS号:
598-30-1
分子量:
64.06
Beilstein:
3587206
MDL编号:
MFCD00009323
UNSPSC代码:
12352103
PubChem化学物质编号:
24851700
NACRES:
NA.22
价格与库存信息目前不能提供

表单

liquid

质量水平

200

浓度

1.4 M in cyclohexane

密度

0.769 g/mL at 25 °C

储存温度

2-8°C

SMILES字符串

[Li]C(C)CC

InChI

1S/C4H9.Li/c1-3-4-2;/h3H,4H2,1-2H3;

InChI key

VATDYQWILMGLEW-UHFFFAOYSA-N

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应用

仲丁基锂溶液（1.4M，溶解在环己烷中）已用于以胸苷为原材料，多步法合成 5-甲基-5，6-二氢胸苷（5-MDHT）。[1]在手性配体存在下，它还用于烯丙基溴化物、氯化物和醚的铜催化不对称烯丙基烷基化（AAA）。[2]

包装

推荐将 25mL Sure/Seal ™瓶作为一次性使用的瓶子。重复穿刺可能会导致产品性能下降。

法律信息

Sure/Seal is a trademark of Sigma-Aldrich Co. LLC

警示用语：

Danger

危险分类

Aquatic Acute 1 - Aquatic Chronic 1 - Asp. Tox. 1 - Eye Dam. 1 - Flam. Liq. 2 - Pyr. Liq. 1 - Skin Corr. 1B - STOT SE 3 - Water-react 1

靶器官

Central nervous system

储存分类代码

4.2 - Pyrophoric and self-heating hazardous materials

WGK

WGK 2

闪点(°F)

1.4 °F - closed cup

闪点(°C)

-17 °C - closed cup

个人防护装备

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
SHBS3401
SHBQ9596
STBL2742
SHBQ5914
STBL0210

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The synthesis, molecular and morphological characterization of a 3-miktoarm star terpolymer of polystyrene (PS, M¯n = 61.0 kg/mol), polybutadiene (PB, M¯n = 38.2 kg/mol) and polyisoprene (PI, M¯n = 29.2 kg/mol), corresponding to volume fractions (φ) of 0.46, 0.31 and
Jason V Chari et al.
The Journal of organic chemistry, 84(6), 3652-3655 (2019-03-07)
Silyl triflate precursors to cyclic alkynes and allenes serve as valuable synthetic building blocks. We report a concise and scalable synthetic approach to prepare the silyl triflate precursors to cyclohexyne and 1,2-cyclohexadiene. The strategy involves a retro-Brook rearrangement of an
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In this work, the self-assembly of a series of amphiphilic polystyrene-b-polyglycidol (PS-b-PGL) diblock copolymers in dioxane and dioxane/water mixtures is presented. The PS-b-PGL have an average degree of polymerization (DP) of PS block equal to 29 units and varied degrees
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Chemistry (Weinheim an der Bergstrasse, Germany), 24(68), 18012-18019 (2018-11-15)
Although living polymerization methods are widely applicable to organic monomers, their application to inorganic monomers is rare. For the first time, we show that the living poly(methylenephosphine) (PMPn- ) anion can function as a macroinitiator for olefins. Specifically, the phosphaalkene
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European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences, 118, 32-39 (2018-03-20)
Tumor pH detection and pH value change monitoring have been of great interest in the field of nanomedicine. In this study, a pH-sensitive near-infrared fluorescence probe SiRB (Si-rhodamine and Boronic acid group) was synthesized by introducing a boronic acid group
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3 Reviews This action will navigate to reviews.

Questions

Reviews

1 of 3 reviewers received a sample product or took part in a promotion
1–2 of 3 Reviews  

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  1. South West, UK
    • Review 1
    • Votes 7
    2 out of 5 stars.

    Titrate your s-BuLi before use

    s-BuLi when titrated came to about 0.73 M not the 1.4 M stated on the bottle

    Helpful?

    1. Response from MilliporeSigma:

      Thank you for taking the time to leave a review! sec-Butyllithium is very sensitive to air, moisture and temperature and should be handled under inert atmosphere. During storage a white precipitate of lithium hydride may form as it slowly decomposes, which is part of the characteristics of this chemical resulting in a limited shelf life. We would love to learn more about your experience and see if there is anything more we can do to help with this issue. When you have a moment, please contact us by visiting https://www.sigmaaldrich.com/support/customer-support and submit a Product Technical Inquiry. We look forward to hearing from you soon!

  2. South West
    • Review 1
    • Votes 6
    1 out of 5 stars.

    Highly turbid, with sediment that doesn't settle

    Highly turbid, with sediment that doesn't settle, giving inconsistent results. Titre is less than half than marketed.

    Helpful?

    1. Response from MilliporeSigma:

      Thank you for taking the time to leave a review! We are sorry to hear that your experience did not meet expectations. We would like to learn more about your experience to see if there is anything we can do to help troubleshoot this issue. When you have a moment, please contact us by visiting https://www.sigmaaldrich.com/support/customer-support and submit a Report Product Issue ticket. We look forward to hearing from you soon!

  3. 1 Ratings-Only Review

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