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SPR inhibitor 3 is an effective sepiapterin reductase inhibitor. SPR inhibitor 3 decreases neuropathic and inflammatory pain through a reduction of BH4 levels. SPR inhibitor 3 shows a high binding affinity to human SPR in a cell-free assay (IC50=74 nM) and efficiently reduces biopterin levels in a cell-based assay (IC50=5.2 μM).

| Pack Size | Price | Availability | Quantity |
|---|---|---|---|
| 2 mg | $67 | 5 days | |
| 5 mg | $116 | 7-10 days | |
| 10 mg | $175 | 7-10 days | |
| 1 mL x 10 mM (in DMSO) | $128 | 7-10 days |
| Description | SPR inhibitor 3 is an effective sepiapterin reductase inhibitor. SPR inhibitor 3 decreases neuropathic and inflammatory pain through a reduction of BH4 levels. SPR inhibitor 3 shows a high binding affinity to human SPR in a cell-free assay (IC50=74 nM) and efficiently reduces biopterin levels in a cell-based assay (IC50=5.2 μM). |
| Targets&IC50 | Sepiapterin reductase:74 nM |
| In vitro | SPR inhibitor 3 obviously decreases SPR activity in mouse primary cultures of sensory neurons (IC50=0.45 μM) without affecting the activity of the GTP cyclohydroxylase 1 enzyme [1]. |
| Synonyms | SPRi3 |
| Molecular Weight | 262.3 |
| Formula | C14H18N2O3 |
| Cas No. | 1292285-54-1 |
| Relative Density. | 1.241 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. |

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