Size | Price | |
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100mg | ||
250mg | ||
500mg |
ln Vivo |
It has been demonstrated that L-aspartic acid is an appropriate prodrug for colon-specific drug delivery[1]. Preadministration of 100 mM L-Aspartic acid and 100 mM L-Glu increases the amount of L-[3H]Asp that is still in the brain at 5 minutes by 206 and 178%, respectively; L-[3H]Asp efflux transport is unaffected by 100 mM D-Asp. The coadministration of 100 mM L-Aspartic acid and 100 mM L-Glu, respectively, increases that value for L-[3H]Glu at 20 minutes by 145 and 156%, but not by D-Asp. It's noteworthy to note that L-Aspartic acid appears to traverse the BBB seven times faster than L-Glu does[2].
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References |
[1]. Hosoya K, et al. Blood-brain barrier produces significant efflux of L-aspartic acid but not D-aspartic acid: in vivo evidence using the brain efflux index method. J Neurochem. 1999 Sep;73(3):1206-11.
[2]. Leopold CS, et al. In vivo pharmacokinetic study for the assessment of poly(L-aspartic acid) as a drug carrier for colon-specific drug delivery. J Pharmacokinet Biopharm. 1995 Aug;23(4):397-406. |
Molecular Formula |
C4H7NO4
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Molecular Weight |
133.1027
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CAS # |
56-84-8
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Appearance |
Typically exists as solids (or liquids in special cases) at room temperature
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SMILES |
O([H])C([C@]([H])(C([H])([H])C(=O)O[H])N([H])[H])=O
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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 Vitro) |
1M NaOH : 100 mg/mL (~751.31 mM)
H2O : ~2 mg/mL (~15.03 mM) DMSO :< 1 mg/mL |
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Solubility (In Vivo) |
Solubility in Formulation 1: 1 mg/mL (7.51 mM) in PBS (add these co-solvents sequentially from left to right, and one by one), clear solution; with sonication (<60°C).
 (Please use freshly prepared in vivo formulations for optimal results.) |
Preparing Stock Solutions | 1 mg | 5 mg | 10 mg | |
1 mM | 7.5131 mL | 37.5657 mL | 75.1315 mL | |
5 mM | 1.5026 mL | 7.5131 mL | 15.0263 mL | |
10 mM | 0.7513 mL | 3.7566 mL | 7.5131 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.