A SOD mimetic and peroxynitrite decomposition catalyst
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Mn(III)TMPyP

Item No. 75852

Technical Information
Formal Name
Mn(III)tetrakis(1-methyl-4-pyridyl)porphyrin pentachloride
Molecular Formula
C44H36MnN8 • 5Cl
Formula Weight
A crystalline solid
0.1 M Tris-HCl, 1 mM EDTA, pH 9.0: >100 mg/mlaqueous buffers (pH 1-9): >50 mg/mlPBS (pH 7.2): >4 mg/ml
λmax
469 nm
SMILES
C[N+]1=CC=C(C=C1)C2=C(C=C3)[N]4=C3C(C5=CC=[N+](C)C=C5)=C6[N-]7[Mn+3]84[N-]9C2=CC=C9C(C(C=C%10)=CC=[N+]%10C)=C(C=C%11)[N]8=C%11C(C%12=CC=[N+](C)C=C%12)=C7C=C6.[Cl-].[Cl-].[Cl-].[Cl-].[Cl-]
InChi Code
InChI=1S/C44H36N8.5ClH.Mn/c1-49-21-13-29(14-22-49)41-33-5-7-35(45-33)42(30-15-23-50(2)24-16-30)37-9-11-39(47-37)44(32-19-27-52(4)28-20-32)40-12-10-38(48-40)43(36-8-6-34(41)46-36)31-17-25-51(3)26-18-31;;;;;;/h5-28H,1-4H3;5*1H;/q+2;;;;;;+3/p-5
InChi Key
OHZZTXYKLXZFSZ-UHFFFAOYSA-I
Shipping & Storage Information
Storage
-20°C
Shipping
Room temperature in continental US; may vary elsewhere
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    Product Description

    Mn(III)TMPyP is a manganese-porphyrin which acts as a superoxide dismutase (SOD) mimetic and peroxynitrite decomposition catalyst.1 SOD mimetics described to date are unstable and are capable of catalyzing undesired side-reactions in addition to the dismutation of the superoxide radical (O2-). Mn(III)TMPyP is an SOD mimetic with increased stability to pH and hydrogen peroxide. The rate constant for superoxide dismutation and peroxynitrite decomposition are 3.9 x 107 M−1s−1 and ~2 x 106 M−1s−1, respectively.1,2 Mn(III)TMPyP protected and enhanced the growth of SOD null E. coli with a doubling time of 60 minutes (as compared to 240 minutes of the control) at 25 µM.2

    WARNING This product is not for human or veterinary use.

    References & Product Citations
    Product Description References

    1. Hunt, J., Lee, J., and Groves, J.T. Amphiphilic peroxynitrite decomposition catalysts in liposomal assemblies. Chem. Biol. 4(11), 845-858 (1997).

    2. Faulkner, K.M., Liochev, S.I., and Fridovich, I. Stable Mn(III) porphyrins mimic superoxide dismutase in vitro and substitute for it in vivo. The Journal of Biological Chemisty 269(38), 23471-23476 (1994).