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235989

Brij® L4

average Mn ~362

Synonym(e):

Polyethylenglykol-dodecylether, Polyoxyethylen(4)-laurylether

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Über diesen Artikel

Lineare Formel:
(C20H42O5)n
CAS-Nummer:
9002-92-0
MDL-Nummer:
MFCD00043063
UNSPSC-Code:
12161900
PubChem Substanz-ID:
24854130
NACRES:
NA.21

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Beschreibung

non-ionic

Qualitätsniveau

200

Form

solid or liquid

Mol-Gew.

average Mn ~362

Verunreinigungen

≤1% Water

Brechungsindex

n20/D 1.451 (lit.)

mp (Schmelzpunkt)

48 °C

Löslichkeit

water: insoluble

Dichte

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

InChIKey

WPMWEFXCIYCJSA-UHFFFAOYSA-N

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Dieser Artikel
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 -Lösung 30 % (w/v) in H2O

Sigma-Aldrich

B4184

Brij® L23 -Lösung

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

-

Allgemeine Beschreibung

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

Anwendung

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]

Biochem./physiol. Wirkung

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]

Rechtliche Hinweise

Brij is a registered trademark of Croda International PLC

Piktogramme

Exclamation markEnvironment
GHS07,GHS09

Signalwort

Warning

Gefahreneinstufungen

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

Lagerklassenschlüssel

10 - Combustible liquids

WGK

WGK 2

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Persönliche Schutzausrüstung

dust mask type N95 (US), Eyeshields, Gloves

Hier finden Sie alle aktuellen Versionen:

Analysenzertifikate (COA)

Lot/Batch Number
MKCX8039
MKCV8516
MKCQ7698
MKCL6849
MKCK4613

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In der Dokumentenbibliothek finden Sie die Dokumentation zu den Produkten, die Sie kürzlich erworben haben.

Die Dokumentenbibliothek aufrufen

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
Jun Koizumi et al.
AJR. American journal of roentgenology, 199(1), 200-207 (2012-06-27)
Balloon-occluded retrograde transvenous obliteration has been traditionally based on liquid sclerotherapy. However, overdose and systemic spillage of liquid sclerosant can cause severe complications, such as hemolysis, which lead to hemoglobinuria, allergy, acute respiratory distress syndrome, and other disorders. The purpose
Otte Brosjö et al.
Acta orthopaedica, 84(5), 502-505 (2013-11-01)
Recent data suggest that percutaneous sclerotherapy is a safe alternative to surgery for treatment of aneurysmal bone cysts (ABCs). We present our experience of this method. We retrospectively analyzed data from 38 consecutive patients treated with repeated injections of polidocanol.
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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

      Helpful?

  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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