Date published: 2025-10-4

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Ammonium iron(III) citrate (CAS 1185-57-5)

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Alternate Names:
Ferric ammonium citrate
CAS Number:
1185-57-5
Molecular Formula:
C6H8O7•xFe(III)•yNH3
Supplemental Information:
This is classified as a Dangerous Good for transport and may be subject to additional shipping charges.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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Ammonium iron(III) citrate is a chemical complex used extensively in analytical chemistry, materials science, and environmental studies. It serves as an iron source in the synthesis of iron oxide nanoparticles, which are of interest for their magnetic properties and potential applications in data storage, magnetic resonance imaging (MRI), and as catalysts in various chemical reactions. This compound is also a component in the production of blueprints through the cyanotype photographic printing process, where it reacts with light and other chemicals to produce a characteristic blue color. In the field of environmental science, Ammonium iron(III) citrate is investigated for its use in the remediation of contaminated water sources through the formation of insoluble iron complexes that can adsorb and remove pollutants. Additionally, researchers study its role as a reagent in the quantification of phenolic compounds and other antioxidants, utilizing its redox properties in colorimetric assays.


Ammonium iron(III) citrate (CAS 1185-57-5) References

  1. Pyrophosphate increases the efficiency of enterobactin-dependent iron uptake in Escherichia coli.  |  Perrotte-Piquemal, M., et al. 1999. Biochimie. 81: 245-53. PMID: 10385006
  2. Uptake of iron by a vegetable; kaiware daikon (Japanese radish sprout).  |  Saiki, C., et al. 2004. J Nutr Sci Vitaminol (Tokyo). 50: 286-90. PMID: 15527072
  3. Iron plays a key role in the cytodifferentiation of human periodontal ligament cells.  |  Hou, J., et al. 2014. J Periodontal Res. 49: 260-7. PMID: 23710667
  4. Towards protein production and application by using Chlorella species as circular economy.  |  Lai, YC., et al. 2019. Bioresour Technol. 289: 121625. PMID: 31203183
  5. Fluorometric assay of iron(II) lactate hydrate and ammonium ferric citrate in food and medicine based on poly(sodium-p-styrenesulfonate)-enhanced Ag nanoclusters.  |  Hu, Y., et al. 2020. Spectrochim Acta A Mol Biomol Spectrosc. 225: 117519. PMID: 31521986
  6. Effect of complex iron on the phosphorus absorption by two freshwater algae.  |  Qiu, Y., et al. 2021. Environ Technol. 42: 4125-4133. PMID: 32188346
  7. Simultaneous promotion of photosynthesis and astaxanthin accumulation during two stages of Haematococcus pluvialis with ammonium ferric citrate.  |  Zhu, Y., et al. 2021. Sci Total Environ. 750: 141689. PMID: 32871372
  8. Benefits of Iron Chelators in the Treatment of Parkinson's Disease.  |  Zeng, X., et al. 2021. Neurochem Res. 46: 1239-1251. PMID: 33646533
  9. Impact of iron raw materials and their impurities on CHO metabolism and recombinant protein product quality.  |  Weiss, CH., et al. 2021. Biotechnol Prog. 37: e3148. PMID: 33742789
  10. Ammonium Ferric Citrate induced Ferroptosis in Non-Small-Cell Lung Carcinoma through the inhibition of GPX4-GSS/GSR-GGT axis activity.  |  Wu, W., et al. 2021. Int J Med Sci. 18: 1899-1909. PMID: 33746607
  11. Aptamer Turn-On SERS/RRS/Fluorescence Tri-mode Platform for Ultra-trace Urea Determination Using Fe/N-Doped Carbon Dots.  |  Li, C., et al. 2021. Front Chem. 9: 613083. PMID: 33791276
  12. [Polarized activation affects iron metabolism in macrophages].  |  Li, YQ., et al. 2021. Sheng Li Xue Bao. 73: 244-252. PMID: 33903886
  13. Ferric ammonium citrate (FAC)-induced inhibition of osteoblast proliferation/differentiation and its reversal by soybean-derived peptides (SDP).  |  Wang, F., et al. 2021. Food Chem Toxicol. 156: 112527. PMID: 34464636
  14. Promoting effect of Fe3+ on gentamicin resistance in Escherichia coli.  |  Huang, YF., et al. 2022. Biochem Biophys Res Commun. 625: 134-139. PMID: 35961137

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Ammonium iron(III) citrate, 100 g

sc-227256
100 g
$49.00

Ammonium iron(III) citrate, 1 kg

sc-227256A
1 kg
$82.00

Ammonium iron(III) citrate, 5 kg

sc-227256B
5 kg
$367.00

Ammonium iron(III) citrate, 10 kg

sc-227256C
10 kg
$683.00