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Merck
CN

235989

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
NACRES:
NA.21
PubChem Substance ID:
24854130
UNSPSC Code:
12161900
MDL number:
MFCD00043063

Key Documents

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Product Name

Brij® L4, average Mn ~362

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

SMILES string

CCCCCCCCCCCCOCCOCCOCCOCCO

InChI key

WPMWEFXCIYCJSA-UHFFFAOYSA-N

description

non-ionic

form

solid or liquid

mol wt

average Mn ~362

impurities

≤1% Water

refractive index

n20/D 1.451 (lit.)

mp

48 °C

solubility

water: insoluble

density

0.95 g/mL at 25 °C (lit.)

HLB

9

Quality Level

200

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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.

General description

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

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

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.
ACS applied materials & interfaces, 9(30), 25542-25552 (2017-07-12)
The emergence of stretchable electronics and its potential integration with textiles have highlighted a challenge: Textiles are wearable and washable, but electronic devices are not. Many stretchable conductors have been developed to enable wearable active textiles, but little has been
Albert-Adrien Ramelet
Dermatologic surgery : official publication for American Society for Dermatologic Surgery [et al.], 38(5), 748-751 (2012-01-25)
Some leg telangiectasias may be refractory to treatment, including sclerotherapy and lasers. To describe the innovative Sclerotherapy in Tumescent Anesthesia of Reticular veins and Telangiectasias (START) approach to achieving good results in such patients, which also proves effective in treating
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Dermatologic surgery : official publication for American Society for Dermatologic Surgery [et al.], 38(7 Pt 2), 1112-1127 (2012-01-25)
The aged hand is characterized by cutaneous and dermal atrophy, with deep intermetacarpal spaces, prominent bones and tendons, and bulging reticular veins. Epidermal changes include solar lentigines, seborrheic keratoses, actinic keratoses, skin laxity, rhytides, tactile roughness, and telangiectasia. A Medline
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