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Purity: ≥98%
Ginkgolide A (Ginkgolide A; BN 52020; BN-52020), a naturally occuring terpenic lactone isolated from Ginkgo biloba, is a g-aminobutyric acid (GABA) receptor antagonist with important biological activity. It inhibits GABA receptor with a Ki of 14.5 μM.
| ln Vitro |
An extremely potent PAF antagonist cage molecule called Ginkgolide A (BN-52020) was extracted from the leaves of the Ginkgo biloba tree. shows promise in a broad range of immune and inflammatory disorders. Ginkgolide A (BN-52020) did not reduce apoptotic damage in neurons treated with staurosporine or those devoid of serum[2].
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| ln Vivo |
In sedated mice, ginkgolide A dramatically reduced their amount of time spent sleeping[1].
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| Animal Protocol |
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| References |
[1]. Wada, K., et al., Isolation of bilobalide and ginkgolide A from Ginkgo biloba L. shorten the sleeping time induced in mice by anesthetics. Biol Pharm Bull, 1993. 16(2): p. 210-2.
[2]. Ahlemeyer, B. and J. Krieglstein, Pharmacological studies supporting the therapeutic use of Ginkgo biloba extract for Alzheimer's disease. Pharmacopsychiatry, 2003. 36(S 1): p. 8-14. |
| Molecular Formula |
C20H24O9
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| Molecular Weight |
408.4
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| CAS # |
15291-75-5
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| Related CAS # |
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| SMILES |
O1[C@@]2([H])[C@]3([C@]([H])(C(=O)O2)O[H])[C@]([H])(C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H])C([H])([H])[C@]2([H])[C@@]43C([H])([H])[C@@]3([H])[C@]([C@]([H])(C([H])([H])[H])C(=O)O3)([C@]14C(=O)O2)O[H]
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| InChi Key |
FPUXKXIZEIDQKW-VKMVSBOZSA-N
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| InChi Code |
InChI=1S/C20H24O9/c1-7-12(22)26-10-6-17-9-5-8(16(2,3)4)18(17)11(21)13(23)28-15(18)29-20(17,14(24)27-9)19(7,10)25/h7-11,15,21,25H,5-6H2,1-4H3/t7-,8+,9-,10+,11+,15+,17-,18+,19-,20-/m1/s1
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| Chemical Name |
9H-1,7a-(Epoxymethano)-1H,6aH-cyclopenta(c)furo(2,3-b)furo(3,2:3,4)cyclopenta(1,2-d)furan-5,9,12(4H)-trione, 3-(1,1-dimethylethyl)hexahydro-4,7b-dihydroxy-8-methyl-, (1R,3S,3aS,4R,6aR,7aR,7bR,8S,10aS,11aS)-
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| Synonyms |
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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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| Solubility (In Vivo) |
Solubility in Formulation 1: ≥ 2.5 mg/mL (6.12 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL. Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution. Solubility in Formulation 2: ≥ 2.5 mg/mL (6.12 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly. Preparation of 20% SBE-β-CD in Saline (4°C，1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution. View More
Solubility in Formulation 3: ≥ 2.5 mg/mL (6.12 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution. |
| Preparing Stock Solutions | 1 mg | 5 mg | 10 mg | |
| 1 mM | 2.4486 mL | 12.2429 mL | 24.4858 mL | |
| 5 mM | 0.4897 mL | 2.4486 mL | 4.8972 mL | |
| 10 mM | 0.2449 mL | 1.2243 mL | 2.4486 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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