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Merck

235989

Brij® L4

average Mn ~362

Synonyme(s) :

Polyethylene glycol dodecyl ether, Polyoxyethylene (4) lauryl ether

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A propos de cet article

Formule linéaire :
(C20H42O5)n
Numéro CAS:
9002-92-0
Numéro MDL:
MFCD00043063
Code UNSPSC :
12161900
ID de substance PubChem :
24854130
Nomenclature NACRES :
NA.21

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Description

non-ionic

Niveau de qualité

200

Forme

solid or liquid

Poids mol.

average Mn ~362

Impuretés

≤1% Water

Indice de réfraction

n20/D 1.451 (lit.)

Pf

48 °C

Solubilité

water: insoluble

Densité

0.95 g/mL at 25 °C (lit.)

HLB

9

Chaîne SMILES 

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

Clé InChI

WPMWEFXCIYCJSA-UHFFFAOYSA-N

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Cet article
16005P1254B4184
Brij® L4 average Mn ~362

Sigma-Aldrich

235989

Brij® L4

Brij® L23 main component: tricosaethylene glycol dodecyl ether

Sigma-Aldrich

16005

Brij® L23

Brij® L23 suitable for Stein-Moore chromatography

Sigma-Aldrich

P1254

Brij® L23

Brij® L23 solution 30 % (w/v) in H2O

Sigma-Aldrich

B4184

Brij® L23 solution

mol wt

average Mn ~362

mol wt

-

mol wt

micellar avg mol wt 48,000, estimated mol wt 1198

mol wt

~1198.0 g/mol

HLB

9

HLB

-

HLB

16.9

HLB

16.9

density

0.95 g/mL at 25 °C (lit.)

density

-

density

-

density

1.024 g/mL

description

non-ionic

description

non-ionic

description

non-ionic

description

non-ionic

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

refractive index

n20/D 1.451 (lit.)

refractive index

-

refractive index

-

refractive index

-

Description générale

Brij® L4 is a non-ionic surfactant. It comprises an alkyl (C12) tail attached to an oxyethylene headgroup.[1]

Application

Brij® L4 has been used:
  • as a surfactant for the synthesis of copper(I) oxide (Cu2O) spherical nanoparticles using a microemulsion technique[2]
  • as a non-ionic surfactant for preparing reverse micelles to synthesize Pt3Co alloy nanoparticles[3]
  • as a surfactant to enhance the efficiency of interfacial coupling of hydrophobic materials and to make hydrogel[4]

Actions biochimiques/physiologiques

Brij® L4 exhibits amphiphilic properties.[5] 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.[5] 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.[1]

Informations légales

Brij is a registered trademark of Croda International PLC

Pictogrammes

Exclamation markEnvironment
GHS07,GHS09

Mention d'avertissement

Warning

Mentions de danger

H302,H315,H319,H411

Classification des risques

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

Code de la classe de stockage

10 - Combustible liquids

Classe de danger pour l'eau (WGK)

WGK 2

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

dust mask type N95 (US), Eyeshields, Gloves

Faites votre choix parmi les versions les plus récentes :

Certificats d'analyse (COA)

Lot/Batch Number
MKCX8039
MKCV8516
MKCQ7698
MKCL6849
MKCK4613

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Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.

Consulter la Bibliothèque de documents

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
Sabrina G Fabi et al.
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
Ramon R J P van Eekeren et al.
Journal of vascular surgery, 57(2), 445-450 (2012-11-13)
Thermal ablative techniques of varicose veins carry a risk of heat-related complications, including postoperative pain. Mechanochemical endovenous ablation (MOCA) might avoid these complications and reduce postoperative pain because of the absence of thermal energy. This study evaluated postoperative pain and
Afficher tous les articles scientifiques apparentés

Questions

1–2 of 2 Questions  

  1. 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/418/501/product-dating-information-06-25-mk.pdf

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  2. 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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