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Sigma-Aldrich

sec-Butyllithium solution

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

1.4 M in cyclohexane

Synonim(y):

Lithium-2-butanide, s-BuLi

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100 ML
331,00 zł
4 X 25 ML
484,00 zł
800 ML
1190,00 zł
1 L
730,00 zł

331,00 zł

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Wszystkie zdjęcia(2)

Wybierz wielkość

Zmień widok
100 ML
331,00 zł
4 X 25 ML
484,00 zł
800 ML
1190,00 zł
1 L
730,00 zł

About This Item

Wzór liniowy:
CH3CH2CH(CH3)Li
Numer CAS:
598-30-1
Masa cząsteczkowa:
64.06
Beilstein:
3587206
Numer MDL:
MFCD00009323
Kod UNSPSC:
12352103
Identyfikator substancji w PubChem:
24851700
NACRES:
NA.22

331,00 zł

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Formularz

liquid

Poziom jakości

200

stężenie

1.4 M in cyclohexane

gęstość

0.769 g/mL at 25 °C

temp. przechowywania

2-8°C

ciąg SMILES

[Li]C(C)CC

InChI

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

Klucz InChI

VATDYQWILMGLEW-UHFFFAOYSA-N

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Zastosowanie

sec-Butyllithium solution (1.4M in cyclohexane) has been used in the multi-step synthesis of 5-methyl-5,6-dihydrothymidine (5-MDHT) from thymidine.[1] It has also been used in the copper-catalyzed asymmetric allylic alkylation (AAA) of allyl bromides, chlorides, and ethers in the presence of a chiral ligand.[2]

Opakowanie

The 25 mL Sure/Seal™ bottle is recommended as a single-use bottle. Repeated punctures will likely result in decreased performance of product.

Informacje prawne

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

Danger

Zwroty wskazujące rodzaj zagrożenia

H225,H250,H260,H304,H314,H336,H410

Klasyfikacja zagrożeń

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

Organy docelowe

Central nervous system

Kod klasy składowania

4.2 - Pyrophoric and self-heating hazardous materials

Klasa zagrożenia wodnego (WGK)

WGK 2

Temperatura zapłonu (°F)

1.4 °F - closed cup

Temperatura zapłonu (°C)

-17 °C - closed cup

Środki ochrony indywidualnej

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

Wykazy regulacyjne

Wykazy regulacyjne dotyczą głównie produktów chemicznych. Można w nich podawać ograniczoną liczbę informacji na temat produktów niechemicznych. Brak wpisu oznacza, że żaden ze składników nie znajduje się w wykazie. Użytkownik odpowiada za zagwarantowanie bezpiecznego i zgodnego z prawem stosowania produktu.

EU REACH Annex XVII (Restriction List)

CAS No.

Wybierz jedną z najnowszych wersji:

Certyfikaty analizy (CoA)

Lot/Batch Number
SHBS3401
SHBQ9596
STBL2742
SHBQ5914
STBL0210

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Dokumenty związane z niedawno zakupionymi produktami zostały zamieszczone w Bibliotece dokumentów.

Odwiedź Bibliotekę dokumentów

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
Dimitrios Moschovas et al.
Nanomaterials (Basel, Switzerland), 10(8) (2020-08-06)
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
Lukasz Otulakowski et al.
Polymers, 12(1) (2020-01-17)
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
Leixing Chen et al.
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
Cheng Chen et al.
Organic & biomolecular chemistry, 15(25), 5364-5372 (2017-06-16)
A series of 6,6-dihalo-2-azabicyclo[3.1.0]hexane and 7,7-dihalo-2-azabicyclo[4.1.0]heptane compounds were prepared by the reaction of dihalocarbene species with N-Boc-2,3-dihydro-1H-pyrroles or -1,2,3,4-tetrahydropyridines. Monochloro substrates were synthesised as well, using a chlorine-to-lithium exchange reaction. The behaviour of several aldehydes and ketones under reductive amination
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3 Reviews This action will navigate to reviews.

Questions

1–2 of 2 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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Reviews

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

Active Filters

  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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