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Loxoribine (RWJ 21757) is a guanosine analog. Loxoribine is an orally bioavailable and selective Toll-like receptor (TLR) 7 agonist. It has anti-viral and anti-tumor activities.Loxoribine is a potent new immunostimulant with a relatively broad spectrum of immunobiological activities.

| Pack Size | Price | USA Warehouse | Global Warehouse | Quantity |
|---|---|---|---|---|
| 5 mg | $31 | In Stock | In Stock | |
| 10 mg | $52 | In Stock | In Stock | |
| 25 mg | $84 | In Stock | In Stock | |
| 50 mg | $123 | In Stock | In Stock | |
| 100 mg | $182 | In Stock | - | |
| 1 mL x 10 mM (in DMSO) | $35 | In Stock | In Stock |
| Description | Loxoribine (RWJ 21757) is a guanosine analog. Loxoribine is an orally bioavailable and selective Toll-like receptor (TLR) 7 agonist. It has anti-viral and anti-tumor activities.Loxoribine is a potent new immunostimulant with a relatively broad spectrum of immunobiological activities. |
| In vitro | Loxoribine selectively activates innate immune system cells through the Toll-like receptor (TLR) 7/MyD88-dependent signaling pathway[1], leading to the maturation of human monocyte-derived dendritic cells (DCs) and enhancing their Th-1- and Th-17-polarizing capability[2]. Additionally, loxoribine (250 μM; 48 hours) promotes MoDCs maturation, evident from the increased expression of CD80, CD83, CD40, CD54, and CCR7[2]. |
| In vivo | In vivo, Loxoribine (2 mg; s.c.or i.v.) activates murine natural killer (NK) cells[3]. |
| Synonyms | RWJ 21757, 7-Allyl-8-oxoguanosine |
| Molecular Weight | 339.3 |
| Formula | C13H17N5O6 |
| Cas No. | 121288-39-9 |
| Smiles | Nc1nc(=O)c2n(CC=C)c(=O)n(C3OC(CO)C(O)C3O)c2[nH]1 |
| Relative Density. | 1.92 g/cm3 (Predicted) |
| Storage | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice/Shipping at ambient temperature. | ||||||||||||||||||||||||||||||
| Solubility Information | DMSO: 27.5 mg/mL (81.05 mM), Sonication is recommended. | ||||||||||||||||||||||||||||||
| In Vivo Formulation | 10% DMSO+40% PEG300+5% Tween 80+45% Saline: 2 mg/mL (5.89 mM), Sonication is recommended. Please add the solvents sequentially, clarifying the solution as much as possible before adding the next one. Dissolve by heating and/or sonication if necessary. Working solution is recommended to be prepared and used immediately. The formulation provided above is for reference purposes only. In vivo formulations may vary and should be modified based on specific experimental conditions. | ||||||||||||||||||||||||||||||
Solution Preparation Table | |||||||||||||||||||||||||||||||
DMSO
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