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725331

Sigma-Aldrich

Iron oxide(II,III), magnetic nanoparticles solution

5 nm avg. part. size, 5 mg/mL in H2O

Synonym(s):

Magnetic iron oxide nanocrystals, Magnetite, Superparamagnetic iron oxide nanoparticles

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5 ML
CN¥9,008.52

CN¥9,008.52

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5 ML
CN¥9,008.52

About This Item

Empirical Formula (Hill Notation):
Fe3O4
CAS Number:
1317-61-9
Molecular Weight:
231.53
MDL number:
MFCD00011010
UNSPSC Code:
12352302
PubChem Substance ID:
329764148
NACRES:
NA.23

CN¥9,008.52

Available to ship onApril 07, 2025Details

Request a Bulk Order

form

dispersion
nanoparticles

concentration

5 mg/mL in H2O

magnetization

>25 emu/g, at 4500Oe

particle size

4-6 nm (TEM)

avg. part. size

5 nm

density

1.00 g/mL at 25 °C

SMILES string

O=[Fe].O=[Fe]O[Fe]=O

InChI

1S/3Fe.4O

InChI key

SZVJSHCCFOBDDC-UHFFFAOYSA-N

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725366700320700304
Iron oxide(II,III), magnetic nanoparticles solution 5 nm avg. part. size, 5 mg/mL in H2O

725331

Iron oxide(II,III), magnetic nanoparticles solution

Iron oxide(II,III), magnetic nanoparticles solution 20 nm avg. part. size, 5 mg/mL in H2O

725366

Iron oxide(II,III), magnetic nanoparticles solution

Iron oxide(II,III), magnetic nanoparticles solution 5 nm avg. part. size, 5 mg/mL in toluene

700320

Iron oxide(II,III), magnetic nanoparticles solution

Iron oxide(II,III), magnetic nanoparticles solution 20 nm avg. part. size, 5 mg/mL in toluene

700304

Iron oxide(II,III), magnetic nanoparticles solution

particle size

4-6 nm (TEM)

particle size

18-22 nm

particle size

5 nm±1 nm (TEM; conforms)

particle size

20 nm (+/- 2nm TEM)

density

1.00 g/mL at 25 °C

density

1.00 g/mL at 25 °C

density

0.865 g/mL at 25 °C

density

0.865 g/mL at 25 °C

concentration

5 mg/mL in H2O

concentration

5 mg/mL in H2O

concentration

5 mg/mL in toluene

concentration

5 mg/mL in toluene

magnetization

>25 emu/g, at 4500Oe

magnetization

>20 emu/g, at 4500Oe

magnetization

≥30 emu/g (at ambient temperature under 4500 Oe)

magnetization

>20 emu/g, at room temp. under 4500 Oe

avg. part. size

5 nm

avg. part. size

20 nm

avg. part. size

5 nm

avg. part. size

20 nm

General description

Concentration 5mg/ml includes total weight nanocrystals plus ligands.
Iron oxide(II,III), magnetic nanoparticles solution is a chemically stable dispersed solution with a large surface to volume ratio. Its properties include good biocompatibility, and magnetic susceptibility (χ).[1]

Application

Fe3O4 magnetic nanoparticles solution can be used in a variety of biomedical applications such as drug delivery.[2][3] It can also be coated for immobilization of surface atoms for chelation of metal ions.[4]

Storage Class Code

12 - Non Combustible Liquids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

  • Specification Sheet

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    Certificates of Analysis (COA)

    Lot/Batch Number
    MKCX1170
    MKCV6971
    MKCS7046
    MKCR1793
    MKCQ8680

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    Magnetic resonance imaging of ultrasmall superparamagnetic iron oxide-labeled exosomes from stem cells: a new method to obtain labeled exosomes
    Busato A, et al.
    International journal of nanomedicine, 11(3), 2481-2481 (2016)
    Magnetic gamma-Fe2O3 nanoparticles coated with poly-l-cysteine for chelation of As (III), Cu (II), Cd (II), Ni (II), Pb (II) and Zn (II)
    White BR, et al.
    Journal of Hazardous Materials, 161(2-3), 848-853 (2009)
    Microfluidic synthesis of microfibers for magnetic-responsive controlled drug release and cell culture
    Lin Y, et al.
    Testing, 7(3), e33184-e33184 (2012)
    Magnetic nanoparticles-a review
    Indira TK and Lakshmi PK
    International Journal of Pharmaceutical Sciences and Nanotechnology, 3(3), 1035-1042 (2010)
    Marina I Siponen et al.
    Nature, 502(7473), 681-684 (2013-10-08)
    Magnetotactic bacteria align along the Earth's magnetic field using an organelle called the magnetosome, a biomineralized magnetite (Fe(II)Fe(III)2O4) or greigite (Fe(II)Fe(III)2S4) crystal embedded in a lipid vesicle. Although the need for both iron(II) and iron(III) is clear, little is known
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