51280 Sigma-Aldrich


BioXtra, from Porcine, ≥97.0% (HPLC)

Synonym: Chloro(protoporphyrinato)iron(III), Chlorohemin, Chloroprotoporphyrin IX iron(III), Ferriprotoporphyrin IX chloride, Hemin(chloride)

  • CAS Number 16009-13-5

  • Empirical Formula (Hill Notation) C34H32ClFeN4O4

  • Molecular Weight 651.94

  •  Beilstein/REAXYS Number 5229914

  •  EC Number 240-140-1

  •  MDL number MFCD00010726

  •  PubChem Substance ID 57651319

  •  NACRES NA.79



Related Categories Application Index, Biochemicals and Reagents, Cell Biology, Enzymes, Inhibitors, and Substrates, Hemin,
Quality Level   200
biological source   Porcine
product line   BioXtra
assay   ≥97.0% (HPLC)
form   powder or crystals
application(s)   tissue culture: suitable
  transfection: suitable
storage temp.   2-8°C
SMILES string   Cc1c(CCC(O)=O)c2cc3c(CCC(O)=O)c(C)c4cc5nc(cc6c(C)c(C=C)c(cc1n2)n6[Fe](Cl)n34)c(C=C)c5C
InChI   1S/C34H34N4O4.ClH.Fe/c1-7-21-17(3)25-13-26-19(5)23(9-11-33(39)40)31(37-26)16-32-24(10-12-34(41)42)20(6)28(38-32)15-30-22(8-2)18(4)27(36-30)14-29(21)35-25;;/h7-8,13-16H,1-2,9-12H2,3-6H3,(H4,35,36,37,38,39,40,41,42);1H;/q;;+3/p-3/b25-13-,26-13-,27-14-,28-15-,29-14-,30-15-,31-16-,32-16-;;



Hemin is used for the following applications:
• To study bacterial strains and growth conditions
• Used in short-term colony assays (the culture medium consists of hemin along with other components)
• Cell transfections
It may be used in β-hematin formation assay for analyzing the inhibitory activity of MMV (Medicines for Malaria Venture) Malaria Box compounds against the formation of β-hematin.

Biochem/physiol Actions

Hemin, the oxidized version of heme, is an iron-containing prosthetic group for a diverse group of proteins. Free heme, which can be released from hemoglobin following hemolysis, is pro-inflammatory and contributes to iron-derived reactive oxygen species. Free hemin levels may be upregulated in various pathological conditions and can contribute to various inflammatory conditions including vascular disorders, renal failure, and immune-mediated disorders.

Hemin may be used to study the expression and represson of heme oxygenase 1 (HO-1) as well as the activity of HO-1. Hematin is the "X factor" required to grown Haemophilus influenzae.

Safety & Documentation

Safety Information

Personal Protective Equipment 
NONH for all modes of transport
WGK Germany 
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable


Certificate of Analysis (COA)

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Frequently Asked Questions

Which document(s) contains shelf-life or expiration date information for a given product?
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.
How do I get lot-specific information or a Certificate of Analysis?
The lot specific COA document can be found by entering the lot number above under the "Documents" section.
What is the solubility of Product 51280, Hemin?
Hemin can be dissolved in DMSO at 1 mM. This product should be soluble in 1.4 M ammonium hydroxide (50 mg/ml) with 5 minutes of heating at 95 °C, yielding a dark brown solution.A stock solution of 0.25% hemin in 50% triethanolamine can be made.
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