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| 10mg |
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| 25mg |
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| 50mg |
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| 100mg |
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| 250mg |
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Purity: ≥98%
Tanshinone I (Tanshinone A; dihydrotanshinone, tanshinone IIA), a natural pigment isolated from the herbal medicine Salvia miltiorrhiza Bunge, is a potent inhibitor of type IIA human recombinant sPLA2 with important biological activity. It inhibits type IIA human recombinant sPLA2 and rabbit recombinant cPLA2 with IC50s of 11 μM and 82 μM, respectively. It is an active component that may have anticancer, antidiabetic, and neuroprotective properties. Tanshinone I displays cytotoxicity against human macrophages and IFN-g production in KLH-primed lymph node cells. Tanshinone I inhibits PGE2 formation from LPS-induced RAW macrophages (IC50 = 38 μM).
| ln Vitro |
Tanshinone I (IC50=38 μM) suppresses the production of PGE2 in RAW macrophages stimulated by LPS. Tanshinone I clearly reduces PGE2 synthesis (IC50=38 μM) at 10-100 μM when applied concurrently with LPS. When tanshinone I is administered after COX-2 is fully activated, it also lowers PGE2 (IC50=46 μM). Tanshinone I may directly reduce COX-2 activity and/or influence PLA2 activity, as evidenced by the fact that it inhibits PGE2 synthesis by pre-induced COX-2. Tanshinone I exhibits concentration-dependent inhibition of sPLA2 (IC50=11 μM) when it is treated with two distinct forms of phospholipase A2 (PLA2). Tanshinone I also suppresses cPLA2 (IC50=82 μM), albeit less potently [1].
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| ln Vivo |
In paw oedema and adjuvant-induced arthritis in rats, tanshinone I exhibits anti-inflammatory properties. Rat carrageenan (CGN)-induced paw oedema and rat adjuvant-induced arthritis (AIA) are two standard animal models of acute and chronic inflammation that are used to determine the anti-inflammatory efficacy of Tanshinone I. While indomethacin's IC50 is 7.1 mg/kg, tanshinone I exhibits considerable anti-inflammatory efficacy against CGN-induced paw oedema (47% inhibition at 160 mg/kg). With an oral dosage of 50 mg/kg/day in AIA, tanshinone I inhibits secondary inflammation by 27% at 18 days, while prednisolone (5 mg/kg/day) exhibits a strong 65% inhibition [1].
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| Animal Protocol |
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| References |
[1]. Kim SY, et al. Effects of Tanshinone I isolated from Salvia miltiorrhiza bunge on arachidonic acid metabolism and in vivo inflammatory responses. Phytother Res. 2002 Nov;16(7):616-20
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| Molecular Formula |
C18H12O3
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| Molecular Weight |
276.29
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| CAS # |
568-73-0
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| Related CAS # |
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| SMILES |
O1C([H])=C(C([H])([H])[H])C2C(C(C3C4=C([H])C([H])=C([H])C(C([H])([H])[H])=C4C([H])=C([H])C=3C1=2)=O)=O
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| InChi Key |
AIGAZQPHXLWMOJ-UHFFFAOYSA-N
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| InChi Code |
InChI=1S/C18H12O3/c1-9-4-3-5-12-11(9)6-7-13-15(12)17(20)16(19)14-10(2)8-21-18(13)14/h3-8H,1-2H3
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| Chemical Name |
1,6-dimethyl-phenanthro[1,2-b]furan-10,11-dione
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| Storage |
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month |
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| Shipping Condition |
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
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| Solubility (In Vitro) |
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| Preparing Stock Solutions | 1 mg | 5 mg | 10 mg | |
| 1 mM | 3.6194 mL | 18.0969 mL | 36.1939 mL | |
| 5 mM | 0.7239 mL | 3.6194 mL | 7.2388 mL | |
| 10 mM | 0.3619 mL | 1.8097 mL | 3.6194 mL |
*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.
Calculation results
Working concentration： mg/mL；
Method for preparing DMSO stock solution： mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.
Method for preparing in vivo formulation:：Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O，mix and clarify.
(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
(2) Be sure to add the solvent(s) in order.
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