50246 Sigma

Kolliphor® P 407 micro

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Synonym: Lμtrol® micro 127, Poloxamer 407, micronized, Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol)

Properties

Related Categories Biochemicals and Reagents, Excipients for R&D Use Only, Solubilizers & Emulsifiers More...
composition   oxyethylene content, 71.5-74.9%
impurities   ≤0.25% ethylene glycol and diethylene glycol
  ≤0.4% total ash
  ≤0.75% water
  ≤1 ppm ethylene oxide
  ≤2 ppm arsenic
  ≤20 ppm heavy metals
  50-125 ppm butylhydroxytoluene
ign. residue   ≤0.30%
color   APHA: ≤120
particle size distribution   , coeff var ≤10% (residue, No. 140 USS)
  , coeff var ≤50% (residue, No. 270 USS)
pH   5.0-7.5(1:10)
  5.0-7.5(1:40)
suitability   complies for Infrared spectrum

Description

Analysis Note

residual solvents (GLC-HS)
1,4-dioxane ≤5 ppm, ethylene glycol ≤620 ppm ( verified on random samples only)

Application

The Kolliphor P grades are poloxamers from the extensive line of Pluronic block copolymers. They are widely used in the production of pharmaceuticals excipient used as thinkening agent and gel binder in the pharmaceutical industry

Other Notes

average molecular weight/mass 9840-14600 g/mol; average molecular mass 10000-14600 g/mol

Legal Information

Kolliphor is a registered trademark of BASF

Lμtrol is a registered trademark of BASF SE

Price and Availability

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