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Merck

438189

Poly(ethylene glycol-ran-propylene glycol) monobutyl ether

average Mn ~3,900

Synonym(s):

Butoxy polyoxyethylene oxypropylene glycol

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About This Item

Linear Formula:
CH3(CH2)3(OCH2CH2)x[OCH2CH(CH3)]yOH
CAS Number:
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12162002
MDL number:
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Product Name

Poly(ethylene glycol-ran-propylene glycol) monobutyl ether, average Mn ~3,900

InChI

1S/C4H10O.C3H8O2.C2H6O2/c1-2-3-4-5;1-3(5)2-4;3-1-2-4/h5H,2-4H2,1H3;3-5H,2H2,1H3;3-4H,1-2H2

SMILES string

OCCO.CCCCO.CC(O)CO

InChI key

QMNOIORHZMRPLS-UHFFFAOYSA-N

form

viscous liquid

mol wt

average Mn ~3,900

refractive index

n20/D 1.46

viscosity

3,600 cSt(20 °C)(lit.)

bp

>200 °C (lit.)

transition temp

pour point −27 °C

solubility

H2O: soluble at <40 °C

density

1.056 g/mL at 25 °C

Quality Level

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Application

Hydraulic fluids, metal working fluids and lubricants, heat transfer fluids, solder assist fluids, quenchants, lubricants, solvents, plasticizers and foam control agents.

Features and Benefits

Good lubricity under load, noncorrosive to metals. Very low ash content, low pour point, excellent thermal stability.

Storage Class

10 - Combustible liquids

wgk

WGK 1

flash_point_f

235.4 °F - closed cup

flash_point_c

113 °C - closed cup

ppe

Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)


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Hong Ding et al.
Nanoscale, 3(4), 1813-1822 (2011-03-03)
In this study QDs were encapsulated in carboxylated PluronicF127 (F127COOH) triblock polymeric micelles and conjugated with anti-mesothelin antibody for the purpose of alleviating potential toxicity, enhancing the stability and improving targeting efficiency of CdTe/ZnS quantum dots (QDs) in tumors. The
Supramolecular assembly of cyclodextrin-based nanospheres for gene delivery.
Min-min Fan et al.
Journal of controlled release : official journal of the Controlled Release Society, 152 Suppl 1, e141-e142 (2011-12-27)
Na Li et al.
Journal of colloid and interface science, 350(1), 117-125 (2010-07-06)
Nanoparticles consisting of a cross-linked cationic polymer network were prepared using Pluronic F127 and poly(ethylenimine) (PEI) and suggested as a drug delivery system for the anticancer drug Paclitaxel (PTX). In order to further improve the targeting capability of nanoparticles, folic
Diego A Chiappetta et al.
Nanomedicine (London, England), 8(2), 223-237 (2012-11-24)
To investigate the intranasal administration of poly(ethylene oxide)-poly(propylene oxide) polymeric micelles loaded with high payloads of the first-line antiretroviral drug efavirenz for targeting to the CNS. The effect of micellar size and composition and drug payload was assessed, employing simple
Pau Loke Show et al.
Bioresource technology, 116, 226-233 (2011-11-09)
An extractive fermentation technique was developed using a thermoseparating reagent to form a two-phase system for simultaneous cell cultivation and downstream processing of extracellular Burkholderia cepacia lipase. A 10% (w/w) solution of ethylene oxide-propylene oxide (EOPO) with a molecular mass

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