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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

Sinonimo/i:

Lithium-2-butanide, s-BuLi

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About This Item

Formula condensata:
CH3CH2CH(CH3)Li
Numero CAS:
598-30-1
Peso molecolare:
64.06
Beilstein:
3587206
Numero MDL:
MFCD00009323
Codice UNSPSC:
12352103
ID PubChem:
24851700
NACRES:
NA.22
Prezzi e disponibilità al momento non sono disponibili

Stato

liquid

Livello qualitativo

200

Concentrazione

1.4 M in cyclohexane

Densità

0.769 g/mL at 25 °C

Temperatura di conservazione

2-8°C

Stringa SMILE

[Li]C(C)CC

InChI

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

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Applicazioni

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]

Confezionamento

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

Note legali

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

Avvertenze

Danger

Indicazioni di pericolo

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

Classi di pericolo

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

Organi bersaglio

Central nervous system

Codice della classe di stoccaggio

4.2 - Pyrophoric and self-heating hazardous materials

Classe di pericolosità dell'acqua (WGK)

WGK 2

Punto d’infiammabilità (°F)

1.4 °F - closed cup

Punto d’infiammabilità (°C)

-17 °C - closed cup

Dispositivi di protezione individuale

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

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Certificati d'analisi (COA)

Lot/Batch Number
SHBS3401
SHBQ9596
STBL2742
SHBQ5914
STBL0210

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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 6
    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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