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Description

Magnetite · CAS 722492-56-0 · Fe3O4. UNII XM0M87F357. Density: 1.04.

Identification

CAS Registry Number	722492-56-0
PubChem CID	6432052
Molecular formula	Fe3O4
IUPAC name	iron(2+);bis(iron(3+));tetrakis(oxygen(2-))
UNII (FDA)	XM0M87F357

Computed Descriptors

Molecular Weight	231.53
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	4
Rotatable Bond Count	0
Exact Mass	231.784465
Monoisotopic Mass	231.784465
Topological Polar Surface Area	4
Heavy Atom Count	7
Formal Charge	0
Complexity	0

Physical & Chemical Properties

Density	1.04

Physical description & handling notes

• Aqueous suspension, black to reddish-brown liquid
• Black to reddish brown aqueous colloidal product /Pharmaceutical product/
• pH: 6 to 8 /Pharmaceutical product/
• Osmality: approximately 340 mOsm/kg
• Isotonic; osmolality of 291-330 mOsm/kg. Average particle size 17-31 nm /Pharmaceutical product/
• Feridex i.v. is black to reddish brown liquid containing 11.2 mg Fe/mL (56 mg of iron/vial) in a vial with a tear off seal. Feridex i.v. is supplied in 5 mL single dose vials in boxes of 1 and 5. An administration filter is supplied for each vial.

Regulatory Status

Regulatory & Food Contact	CIR / INCI: Cosmetic colorant

Documented Uses

• Contrast agent for hepatic evaluation with magnetic resonance imaging
• THERAPEUTIC CATEGORY: Hematinic. Diagnostic aid (MRI contrast agent)
• Plastics -> Typical concentration range in plastic materials -> 1%
• Plastics -> Polymer Type -> Polyolefin-I; PUR; Polyolefin-II; PVC (soft); ABS; PVC (rigid); PET; PMMA; PA; PC; (E)PS
• Preparation: E.V. Groman, L. Josephson, WO 8800060; eidem, US 4770183 (both 1988 to Advanced Magnetics)
• Preparation: E. V. Groman et al., World Intellectural Property Organization patent 0061191; eidem, United States of America patent 6599498 (2000, 2003 both to Advanced Magnetics).

Synonyms

Ferumoxytol non-stoichiometric magnetite; CLH5FT6412; Feraheme; Rienso; RefChem:55199; R8DG7T2D3A; CODE-7228; DTXSID601027265; 722492-56-0; Code 7228; Ferumoxytol; Feridex; Feridex I.V.; AMI-25; 119683-68-0; Superparamagnetic iron oxide

Frequently Asked Questions

What are the CAS number and molecular formula of Magnetite?

CAS 722492-56-0; molecular formula Fe3O4; molecular weight — g/mol.

What other names is Magnetite known by?

Ferumoxytol non-stoichiometric magnetite, CLH5FT6412, Feraheme, Rienso, RefChem:55199, R8DG7T2D3A.

What is the regulatory status of Magnetite?

Documented regulatory listings: CIR / INCI: Cosmetic colorant.

What are the key physical properties of Magnetite?

Density: 1.04.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.