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250mg | ||
500mg | ||
Other Sizes |
ln Vitro |
Ansatrienin B demonstrates antimicrobial activities against Penicillium chrysogenuin 1AM 7106, Mucor pusillus IAM 6122, Rhizopus delemar IAM 6015, Saccharornyces cerevisiae IFO 0304, Candida utilus IFO 0396, and Candida krusei IFO 0590, with MIC values of 12.5 μg/ml, 12.5 μg/ml, 12.5 μg/ml, 8.0 μg/ml, 4.0 μg/ml, 4.0 μg/ml, and 4.0 μg/ml, respectively[1]. Fetal rat long bones release 45 calcium into the culture medium, and ansatrienin B inhibits this release with an apparent halfmaximal inhibition (IC50) value of 21 nM[2]. By selectively inhibiting L-leucine incorporation (IC50=58 nM) in A549 cells, ansatrienin B prevents the translation of the protein synthesis step. In addition, it has an IC50 of 300 nM, which prevents TNF-α-induced ICAM-1 expression[3].
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ln Vivo |
Ansatrienin B (intraperitoneal; once daily; six days) inhibits the formation of tumors in mice that have received P-388 injections. The LD50 value of MTN-II in male CDF1 mice is 80 mg/kg[2].
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References |
[1]. M Sugita, et al. Studies on Mycotrienin Antibiotics, a Novel Class of Ansamycins. I. Taxonomy, Fermentation, Isolation and Properties of Mycotrienins I and II. J Antibiot (Tokyo). 1982 Nov;35(11):1460-6.
[2]. D Feuerbach, et al. Mycotrienins. A New Class of Potent Inhibitors of Osteoclastic Bone Resorption. J Biol Chem. 1995 Oct 27;270(43):25949-55. [3]. Yuriko Yamada, et al.Mycotrienin II, a Translation Inhibitor That Prevents ICAM-1 Expression Induced by Pro-Inflammatory Cytokines. J Antibiot (Tokyo). 2011 May;64(5):361-6. |
Molecular Formula |
C36H50N2O8
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Molecular Weight |
638.79
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CAS # |
82189-04-6
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Appearance |
Typically exists as solids (or liquids in special cases) at room temperature
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SMILES |
CO[C@H]1C=CC=CC=CC[C@H](OC([C@H](NC(C2CCCCC2)=O)C)=O)[C@@H](C)[C@@H](O)C(C)=CCCC2=CC(=CC(=C2O)NC(=O)C1)O |c:3,37,t:5,7,31,&1:2,10,13,25,27|
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HS Tariff Code |
2934.99.9001
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Storage |
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month |
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 Vivo) |
Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples.
Injection Formulations
Injection Formulation 1: DMSO : Tween 80: Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution → 50 μL Tween 80 → 850 μL Saline)(e.g. IP/IV/IM/SC) *Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution. Injection Formulation 2: DMSO : PEG300 :Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO → 400 μLPEG300 → 50 μL Tween 80 → 450 μL Saline) Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO → 900 μL Corn oil) Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals). View More
Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO → 900 μL (20% SBE-β-CD in saline)] Oral Formulations
Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium) Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals). View More
Oral Formulation 3: Dissolved in PEG400  (Please use freshly prepared in vivo formulations for optimal results.) |
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Preparing Stock Solutions | 1 mg | 5 mg | 10 mg | |
1 mM | 1.5655 mL | 7.8273 mL | 15.6546 mL | |
5 mM | 0.3131 mL | 1.5655 mL | 3.1309 mL | |
10 mM | 0.1565 mL | 0.7827 mL | 1.5655 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.