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78973

Poloxamer 188, micronized

Name: Poloxamer 188, micronized
Brand: SIGMA

Synonym(s):

Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol), Lμtrol micro 68

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About This Item

CAS Number:

9003-11-6

UNSPSC Code:

12161900

NACRES:

NA.25

MDL number:

MFCD00082049

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Properties

form

powder

Quality Segment

100

mol wt

~7680-9510 g/mol

composition

oxyethylene content, 79.9-83.7%

technique(s)

DNA extraction: suitable, DNA purification: suitable, NMR: suitable, RNA extraction: suitable, RNA purification: suitable

impurities

organic volatile impurities, complies (meets USP requirements), ≤0.4% total ash, ≤0.75% water, ≤1 ppm ethylene oxide, ≤20 ppm heavy metals, ≤5 ppm 1,4-dioxane, ≤5 ppm propylene oxide, 50-125 ppm butylhydroxytoluene

color

APHA: ≤100

particle size distribution

, coeff var ≤10% (residue, No. 140 USS), , coeff var ≤50% (residue, No 270 USS)

pH

5.0-7.5 (2.5% in H₂O)

suitability

complies for Infrared spectrum

SMILES string

O2C(C2)C.O1CC1

InChI

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

InChI key

RVGRUAULSDPKGF-UHFFFAOYSA-N

Description

Other Notes

The Poloxamer 188 grades are poloxamers from the extensive line of block copolymers.

average molecular weight/mass 7680-9510 g/mol

Legal Information

Storage Class

11 - Combustible Solids

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