Product Name Magnolin
CAS No.: 31008-18-1
Catalog No.: CFN98391
Molecular Formula: C23H28O7
Molecular Weight: 416.5 g/mol
Purity: >=98%
Type of Compound: Lignans
Physical Desc.: Powder
Targets: Caspase | ERK | EGFR | Serine kinase | P450 (e.g. CYP17) | Threonin kinase
Source: The flowers of Magnolia biondii Pamp.
Solvent: Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
Price: $118/20mg
Magnolin has anti-inflammatory, anti-histaminic, and antioxidative effects, it might be a naturally occurring chemoprevention and therapeutic agent capable of inhibiting cell proliferation and transformation by targeting ERK1 and ERK2. Magnolin can ameliorate the renal tubular necrosis, apoptosis, and the deterioration of renal function, it reduces the renal oxidative stress, suppresses caspase-3 activity, and increases Bcl-2 expression in vivo and in vitro.
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Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months(2-8C).

Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20C. Generally, these will be useable for up to two weeks. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.

Need more advice on solubility, usage and handling? Please email to:

The packaging of the product may have turned upside down during transportation, resulting in the natural compounds adhering to the neck or cap of the vial. take the vial out of its packaging and gently shake to let the compounds fall to the bottom of the vial. for liquid products, centrifuge at 200-500 RPM to gather the liquid at the bottom of the vial. try to avoid loss or contamination during handling.
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    Xenobiotica. 2011 May;41(5):358-71.
    In vitro metabolism of magnolin and characterization of cytochrome P450 enzymes responsible for its metabolism in human liver microsomes.[Pubmed: 21294626]
    Magnolin is a major bioactive component found in Shin-i, the dried flower buds of Magnolia fargesii; it has anti-inflammatory and anti-histaminic activities. Incubation of Magnolin in human liver microsomes with an nicotinamide adenine dinucleotide phosphate-generating system resulted in the formation of five metabolites, namely, O-desmethyl Magnolin (M1 and M2), didesmethylMagnolin (M3), and hydroxyMagnolin (M4 and M5).
    In this study, we characterized the human liver cytochrome P450 (CYP) enzymes responsible for the biotransformation of three major metabolites--M1, M2, and M4--of Magnolin. CYP2C8, CYP2C9, CYP2C19, and CYP3A4 were identified as the major enzymes responsible for the formation of the two O-desmethyl Magnolins (M1 and M2), on the basis of a combination of correlation analysis and experiments, including immunoinhibition of Magnolin in human liver microsomes and metabolism of Magnolin by human cDNA-expressed CYP enzymes. CYP2C8 played a predominant role in the formation of hydroxyMagnolin (M4).
    These results suggest that the pharmacokinetics of Magnolin may not be affected by CYP2C8, CYP2C9, CYP2C19, and CYP3A4 responsible for the metabolism of Magnolin or by the co-administration of appropriate CYP2C8, CYP2C9, CYP2C19, and CYP3A4 inhibitors or inducers due to the involvement of multiple CYP enzymes in the metabolism of Magnolin.
    Oxid Med Cell Longev. 2014;2014:203458.
    Magnolin protects against contrast-induced nephropathy in rats via antioxidation and antiapoptosis.[Pubmed: 25400863]
    Magnolin is the major active ingredient of the herb Magnolia fargesii which has anti-inflammatory and antioxidative effects. Oxidative stress and apoptosis are involved in the pathogenesis of contrast-induced nephropathy (CIN). We hypothesize that Magnolin could protect against CIN through antioxidative and antiapoptotic properties.
    To test whether Magnolin could attenuate CIN, oxidative stress and apoptosis, in vivo and in vitro, we utilized a rat model of ioversol-induced CIN and a cell model of oxidative stress in which HK2 cells were treated with H2O2. Rats were assigned to 4 groups (n = 6 per group): control group, ioversol group (ioversol-induced CIN), vehicle group (CIN rats pretreated with vehicle), and Magnolin group (CIN rats pretreated with 1 mg/kg Magnolin). The results showed that Magnolin ameliorated the renal tubular necrosis, apoptosis, and the deterioration of renal function (P < 0.05). Furthermore, Magnolin reduced the renal oxidative stress, suppressed caspase-3 activity, and increased Bcl-2 expression in vivo and in vitro.
    Magnolin might protect CIN in rats through antioxidation and antiapoptosis.
    Carcinogenesis. 2014 Feb;35(2):432-41.
    Targeting of magnolin on ERKs inhibits Ras/ERKs/RSK2-signaling-mediated neoplastic cell transformation.[Pubmed: 24031026]
    Mitogen-activated protein kinases play a key role in cell proliferation, cell cycle progression and cell transformation, and activated Ras/extracellular signal-regulated kinases (ERKs)/ribosomal S6 kinase 2 (RSK2) signaling pathways have been widely identified in many solid tumors.
    In this study, we found that Magnolin, a compound found in the Magnolia species, directly targeted and inhibited ERK1 and ERK2 kinase activities with IC50 values of 87 and 16.5 nM by competing with adenosine triphosphate in an active pocket. Further, we demonstrated that Magnolin inhibited epidermal growth factor (EGF)-induced p90RSKs phosphorylation at Thr359/Ser363, but not ERKs phosphorylation at Thr202/Tyr204, and this resulted in inhibition of cell proliferation by suppression of the G1/S cell cycle transition. Additionally, p38 kinases, Jun N-terminal kinases and Akts were not involved in the Magnolin-mediated inhibitory signaling. Magnolin targeting of ERK1 and 2 activities suppressed the phosphorylation of RSK2 and downstream target proteins including ATF1 and c-Jun and AP-1, a dimer of Jun/Fos, and the transactivation activities of ATF1 and AP-1. Notably, ERKs inhibition by Magnolin suppressed EGF-induced anchorage-independent cell transformation and colony growth of Ras(G12V)-harboring A549 human lung cancer cells and NIH3T3 cells stably expressing Ras(G12V) in soft agar.
    Taken together, these results demonstrated that Magnolin might be a naturally occurring chemoprevention and therapeutic agent capable of inhibiting cell proliferation and transformation by targeting ERK1 and ERK2.
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