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235989

Sigma-Aldrich

Brij® L4

average Mn ~362

Synonym(s):

Polyethylene glycol dodecyl ether, Polyoxyethylene (4) lauryl ether

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About This Item

Linear Formula:
(C20H42O5)n
CAS Number:
9002-92-0
MDL number:
MFCD00043063
UNSPSC Code:
12161900
PubChem Substance ID:
24854130
NACRES:
NA.21

description

non-ionic

Quality Level

200

mol wt

average Mn ~362

refractive index

n20/D 1.451 (lit.)

density

0.95 g/mL at 25 °C (lit.)

HLB

9

SMILES string

CCCCCCCCCCCCOCCOCCOCCOCCO

InChI

1S/C20H42O5/c1-2-3-4-5-6-7-8-9-10-11-13-22-15-17-24-19-20-25-18-16-23-14-12-21/h21H,2-20H2,1H3

InChI key

WPMWEFXCIYCJSA-UHFFFAOYSA-N

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General description

Brij® L4 is a non-ionic surfactant. It comprises an alkyl (C12) tail attached to an oxyethylene headgroup.

Application

Brij® L4 has been used:
  • as a surfactant for the synthesis of copper(I) oxide (Cu2O) spherical nanoparticles using a microemulsion technique
  • as a non-ionic surfactant for preparing reverse micelles to synthesize Pt3Co alloy nanoparticles
  • as a surfactant to enhance the efficiency of interfacial coupling of hydrophobic materials and to make hydrogel

Biochem/physiol Actions

Brij® L4 exhibits amphiphilic properties. Brij L4 contains hydrophobic and hydrophilic regions that can form micelles and disperse hydrophobic drugs into the core of micelles. This in turn enhances drug solubility. Brij L4 also elicits a strong inhibitory effect against breast cancer resistance protein (BCRP) mediated drug efflux. It inhibits Taq adsorption better when compared to other commonly used surfactants. Brij L4 supports droplet polymerase chain reaction (PCR) in picoliter reaction volumes at standard Taq concentrations.

Legal Information

Brij is a registered trademark of Croda International PLC

pictograms

Exclamation markEnvironment
GHS07,GHS09

signalword

Warning

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 2 - Eye Irrit. 2 - Skin Irrit. 2

Storage Class

10 - Combustible liquids

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCX8039
MKCV8516
MKCQ7698
MKCL6849
MKCK4613

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Copper (i) oxide nanoparticle-mediated C-C couplings for synthesis of polyphenylenediethynylenes: Evidence for a homogeneous catalytic pathway
Pary FF, et al.
Catalysis Science & Technology, 11(7), 2414-2421 (2021)
Synthesis of Pt3Co alloy nanocatalyst via reverse micelle for oxygen reduction reaction in PEMFCs
Liu Z, et al.
Topics in Catalysis, 49(3), 241-250 (2008)
Paul Le Floch et al.
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