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| 25mg |
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D-erythro-Sphingosine (Erythrosphingosine) is a highly potent activator of p32-kinase with an EC50 of 8 μM. D-erythro-Sphingosine inhibits protein kinase C (PKC). It is formed mainly from the breakdown of ceramide. D-sphingosine, a lipid possessing the same hydrophobic base as ceramide but without a carbohydrate residue, efficiently blocked this glycolipid antigen presentation both in vitro and in spinal cords of EAE mice, and significantly decreased IL-17 and ameliorated the pathological symptoms.
| ln Vitro |
The p32-sphingosine-activated protein responds to low doses of D-erythro-Sphingosine, with first activation observed at 2.5 μM and maximal activity observed at 10 -20 μM. The potential of sphingosine relative to other sphingosine stereomers, and the preference for sphingosine over hydroisosphingosine [1]. D-erythro-Sphingosine inhibits protein regulatory C in vitro[2]. D-erythro-Sphingosine has been demonstrated to inhibit linked polypeptide C that impacts cell regulation and numerous signal transductions, and demonstrates anti-tumor effect in a range of cells [3].
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| References |
[1]. Pushkareva MYu, et al. Regulation of sphingosine-activated protein kinases: selectivity of activation by sphingoid basesand inhibition by non-esterified fatty acids. Biochem J. 1993 Sep 15;294 ( Pt 3):699-703.
[2]. Khan WA, et al. Protein kinase C and platelet inhibition by D-erythro-Sphingosine: comparison with N,N-dimethylsphingosine and commercial preparation. Biochem Biophys Res Commun. 1990 Oct 30;172(2):683-91. [3]. Pham VT, et al. A concise synthesis of a promising protein kinase C inhibitor: D-erythro-Sphingosine. Arch Pharm Res. 2007 Jan;30(1):22-7. [4]. Cheng P, et al. Protein phosphatase 2A (PP2A) activation promotes axonal growth and recovery in the CNS. J Neurol Sci. 2015 Dec 15;359(1-2):48-56. |
| Molecular Formula |
C₁₈H₃₇NO₂
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|---|---|
| Molecular Weight |
299.49
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| CAS # |
123-78-4
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| Related CAS # |
D-erythro-Sphingosine hydrochloride;2673-72-5;D-erythro-Sphingosine-d7;1246304-34-6
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| SMILES |
CCCCCCCCCCCCC/C=C/[C@@H](O)[C@@H](N)CO
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| InChi Key |
WWUZIQQURGPMPG-KRWOKUGFSA-N
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| InChi Code |
InChI=1S/C18H37NO2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-18(21)17(19)16-20/h14-15,17-18,20-21H,2-13,16,19H2,1H3/b15-14+/t17-,18+/m0/s1
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| Chemical Name |
2S-amino-4E-octadecene-1,3R-diol
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| Synonyms |
Erythrosphingosine erythro-C18-Sphingosine trans-4-Sphingenine(−)-Sphingosine D-erythro-Sphingosine C-18 Sphingosine (d18
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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) |
DMSO : ~50 mg/mL (~166.95 mM)
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| Solubility (In Vivo) |
Solubility in Formulation 1: ≥ 2.5 mg/mL (8.35 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 (8.35 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (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 corn oil and mix evenly. (Please use freshly prepared in vivo formulations for optimal results.) |
| Preparing Stock Solutions | 1 mg | 5 mg | 10 mg | |
| 1 mM | 3.3390 mL | 16.6950 mL | 33.3901 mL | |
| 5 mM | 0.6678 mL | 3.3390 mL | 6.6780 mL | |
| 10 mM | 0.3339 mL | 1.6695 mL | 3.3390 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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