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Sigma-Aldrich

Poloxamer 407

purified, non-ionic

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Synonym(s):
Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol)
CAS Number:
9003-11-6
MDL number:
MFCD00082049
UNSPSC Code:
12352104
NACRES:
NA.25

Quality Level

100

form

powder

quality

purified

impurities

≤1.0% water

pH

5.0-7.5

solubility

soluble, clear, colorless

cation traces

Al: ≤5 mg/kg
As: ≤0.05 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤50 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤1000 mg/kg
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

UV absorption

λ: 260 nm Amax: ≤0.3
λ: 280 nm Amax: ≤0..2

suitability

no residue for filter test

storage temp.

2-8°C

InChI

1S/C3H6O.C2H4O/c1-3-2-4-3;1-2-3-1/h3H,2H2,1H3;1-2H2

InChI key

RVGRUAULSDPKGF-UHFFFAOYSA-N

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General description

Poloxamer 407 is a water-soluble, non-ionic surfactant with low toxicity and good solubilizing capacity. This triblock copolymer is composed of a hydrophobic residue of polyoxypropylene (POP) flanked by two hydrophilic units of polyoxyethylene (POE).

Application

Poloxamer 407 has been used:
  • as an inhibitor of lipoprotein lipase activity to assess hepatic very-low-density lipoprotein (VLDL)- triglyceride (TG) secretion in mice
  • for VLDL secretion assay in mice
  • to intraperitoneally inject the mice by dissolving in phosphate buffer saline (PBS) for hepatic triglyceride production

Biochem/physiol Actions

Poloxamer 407 (P407) exhibits reversible gelation properties above a particular polymer concentration and temperature. Poloxamer 407-based sterile injectable formulations serve to be a good candidate for drug delivery. P407 thermo-responsive hydrogels are broadly used as mucosal drug delivery systems as they do not irritate the mucosal membranes. P407 is called an “inactive ingredient” by the U.S. Food and Drug Administration (FDA) for several drug products like oral solutions, suspensions, and inhalation formulations.

related product

Product No.
Description
Pricing

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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