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20159

Sigma-Aldrich

n-Butyllithium solution

2.7 M in heptane

Synonym(s):

n-BuLi, Butyl lithium, Butyllithium solution, Lithium-1-butanide

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About This Item

Linear Formula:
CH3(CH2)3Li
CAS Number:
109-72-8
Molecular Weight:
64.06
Beilstein:
1209227
MDL number:
MFCD00009414
UNSPSC Code:
12352103
PubChem Substance ID:
57647819
NACRES:
NA.22

form

liquid

shelf life

limited shelf life

concentration

2.7 M in heptane

color

yellow

density

0.71 g/mL at 20 °C

storage temp.

2-8°C

SMILES string

[Li]CCCC

InChI

1S/C4H9.Li/c1-3-4-2;/h1,3-4H2,2H3;

InChI key

MZRVEZGGRBJDDB-UHFFFAOYSA-N

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Application

n-Butyllithium is a strong nucleophile in the synthetic organic chemistry. It is also used as an initiator in the polymerization process.

Caution

a precipitate of lithium hydride can form on longer storage

Signal Word

Danger

Hazard Statements

H260,H304,H314,H336,H410

Hazard Classifications

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

Target Organs

Central nervous system

Supplementary Hazards

EUH014

Storage Class Code

4.2 - Pyrophoric and self-heating hazardous materials

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Methylsulfinyl carbanion (CH3-SO-CH2-). Formation and applications to organic synthesis
Corey EJ and Chaykovsky M
Journal of the American Chemical Society, 87(6), 1345-1353 (1965)
Some trends observed in [60] fullerene polymerization activated by butyllithium isomers
Atovmyan EG, et al.
Russian Chemical Bulletin, 61(11), 2178-2179 (2012)
Tatiana Guzzo et al.
Biomolecules, 10(11) (2020-10-30)
The stability and the degradation of polymers in physiological conditions are very important issues in biomedical applications. The copolymer of hyaluronic acid and poly-D,L-lactic acid (made available in a product called DAC®) produces a hydrogel which retains the hydrophobic character
Deyu Li et al.
The Journal of organic chemistry, 73(6), 2373-2381 (2008-02-26)
A system consisting of a chiral lithium amide and n-BuLi in tol-d(8) solution was investigated with (1)H and (13)C INEPT DOSY, (6)Li and (15)N NMR, and other 2D NMR techniques. A mixed 2:1 trimeric complex was identified as the major
Jennifer L Rutherford et al.
Journal of the American Chemical Society, 124(2), 264-271 (2002-01-10)
6Li and (13)C NMR spectroscopic studies were carried out on [(6)Li]n-BuLi and [(6)Li]PhLi (RLi) in toluene-d(8) containing the following diamines: N,N,N',N'-tetramethylethylenediamine (TMEDA), N,N,N',N'-tetraethylethylenediamine, 1,2-dipyrrolidinoethane, 1,2-dipiperidinoethane, N,N,N',N'-tetramethylpropanediamine, trans-(R,R)-N,N,N',N'-tetramethylcyclohexanediamine, and (-)-sparteine. Dimers of general structure (RLi)(2)S(2) (S = chelating diamine) are formed
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