Carbonyl iron is finely divided high-purity elemental (metallic) iron in the zero oxidation state (CAS 7439-89-6, Fe), produced by the thermal decomposition of iron pentacarbonyl. Because it contains no salt-forming anion or ligand, it is the most concentrated iron ingredient in the family, typically 97% or more elemental iron by weight. Physically it is a grey, finely divided metallic powder rather than a crystalline salt or chelate. We manufacture it in tablet, capsule, powder and liquid formats.
- Tablets
- Capsules
- Powders
- Liquids
Applications
Single-mineral iron supplements, multivitamins and food fortification.
Documentation & quality
Every order is backed by the documents your quality team files, and the controls behind them.
Certificate of Analysis
every batchSpecification sheet
on requestAllergen statement
on requestGMO statement
on requestTraceability
on requestSafety Data Sheet
where applicableHow it’s controlled
- Identity verified on every incoming raw material
- Screened for heavy metals and microbial contaminants
- Full batch and lot traceability
- Produced under our certified NSF GMP system
Other forms of Iron
Ferrous Bisglycinate
Iron(II) bis(glycinate)
- CAS
- 20150-34-9
- Formula
- C4H8FeN2O4
- Elemental
- ~20% Fe (Ferrochel grade; ~27% by anhydrous formula)
- Vegan
- Gluten-free
- Non-GMO
Ferrous Sulfate
Iron(II) sulfate heptahydrate
- CAS
- 7782-63-0
- Formula
- FeSO4·7H2O
- Elemental
- ~20% Fe (heptahydrate; ~33% dried/monohydrate; ~37% anhydrous)
- Vegan
- Gluten-free
- Non-GMO
Ferrous Fumarate
Iron(II) fumarate
- CAS
- 141-01-5
- Formula
- C4H2FeO4
- Elemental
- ~33% Fe
- Vegan
- Gluten-free
- Non-GMO
Ferrous Gluconate
Iron(II) gluconate
- CAS
- 299-29-6
- Formula
- C12H22FeO14
- Elemental
- ~12% Fe (anhydrous; ~11.6% dihydrate)
- Vegan
- Gluten-free
- Non-GMO
Ferrous Lactate
Iron(II) lactate
- CAS
- 5905-52-2
- Formula
- C6H10FeO6
- Elemental
- ~24% Fe (anhydrous; ~19% trihydrate)
- Vegan
- Gluten-free
- Non-GMO
Ferric Pyrophosphate
Iron(III) pyrophosphate
- CAS
- 10058-44-3
- Formula
- Fe4(P2O7)3
- Elemental
- ~30% Fe
- Vegan
- Gluten-free
- Non-GMO
Sodium Feredetate (NaFeEDTA)
Sodium iron(III) ethylenediaminetetraacetate
- CAS
- 15708-41-5
- Formula
- C10H12FeN2NaO8
- Elemental
- ~13% Fe (trihydrate; ~15% anhydrous)
- Vegan
- Gluten-free
- Non-GMO
Ferrous Ascorbate
Iron(II) bis(ascorbate)
- CAS
- 24808-52-4
- Formula
- C12H14FeO12
- Elemental
- ~14% Fe
- Vegan
- Gluten-free
- Non-GMO
Iron Polymaltose Complex
Iron(III)-hydroxide polymaltose complex
- CAS
- 53858-86-9
- Elemental
- varies (assay-standardized elemental Fe)
- Vegan
- Gluten-free
- Non-GMO
Heme Iron Polypeptide
Heme iron polypeptide (hemoglobin hydrolysate)
- Elemental
- ~1-2% Fe (heme; assay-standardized)
- Gluten-free
Electrolytic Iron
Iron (elemental, electrolytic)
- CAS
- 7439-89-6
- Formula
- Fe
- Elemental
- ~99% Fe (elemental)
- Vegan
- Gluten-free
- Non-GMO
Reduced Iron
Iron (elemental, reduced)
- CAS
- 7439-89-6
- Formula
- Fe
- Elemental
- ~97% Fe (elemental)
- Vegan
- Gluten-free
- Non-GMO
Ferric Maltol
Iron(III) tris(maltolate)
- CAS
- 33725-54-1
- Formula
- C18H15FeO9
- Elemental
- ~13% Fe
- Vegan
- Gluten-free
- Non-GMO
Ferric Ammonium Citrate
Ammonium iron(III) citrate
- CAS
- 1185-57-5
- Elemental
- ~16-18.5% Fe (brown grade); ~14.5-16% Fe (green grade)
- Vegan
- Gluten-free
- Non-GMO
Ferric Orthophosphate
Iron(III) phosphate
- CAS
- 10045-86-0
- Formula
- FePO4
- Elemental
- ~37% Fe (anhydrous; ~28-30% as dihydrate)
- Vegan
- Gluten-free
- Non-GMO
Ferrous Succinate
Iron(II) succinate
- CAS
- 10030-90-7
- Formula
- C4H4FeO4
- Elemental
- ~32% Fe
- Vegan
- Gluten-free
- Non-GMO
Ferrous Citrate
Iron(II) citrate
- CAS
- 23383-11-1
- Formula
- C6H6FeO7
- Elemental
- ~22.7% Fe
- Vegan
- Gluten-free
- Non-GMO
Ferrous Pyrophosphate
Iron(II) pyrophosphate (diiron pyrophosphate)
- CAS
- 16037-88-0
- Formula
- Fe2P2O7
- Elemental
- ~39% Fe
- Vegan
- Gluten-free
- Non-GMO
Sucrosomial Iron
Ferric pyrophosphate (sucrosome-encapsulated)
- Elemental
- variable (encapsulated ferric pyrophosphate; per specification)
- Vegan
- Gluten-free
- Non-GMO
Plant Ferritin Iron
Ferritin iron (plant, e.g. pea)
- Elemental
- low (ferritin protein-bound; per specification)
- Vegan
- Gluten-free
- Non-GMO