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L-Buthionine-(S,R)-sulfoximine, a cell-permeable and irreversible inhibitor of γ-glutamylcysteine synthetase (Ki <100 μM), induces oxidative stress in cells by depleting GSH.

| Pack Size | Price | USA Warehouse | Global Warehouse | Quantity |
|---|---|---|---|---|
| 25 mg | $33 | In Stock | In Stock | |
| 50 mg | $47 | In Stock | In Stock | |
| 100 mg | $80 | In Stock | In Stock |
| Description | L-Buthionine-(S,R)-sulfoximine, a cell-permeable and irreversible inhibitor of γ-glutamylcysteine synthetase (Ki <100 μM), induces oxidative stress in cells by depleting GSH. |
| Targets&IC50 | Ovarian tumor:29 μM, Breast:8.6 μM, Melanoma:1.9 μM |
| In vitro | IC50 values (microM) for L-buthionine-S,R-sulfoximine (BSO) on melanoma, breast and ovarian tumor specimens were 1.9, 8.6, and 29, respectively. The IC90 for melanoma was 25.5 microM, a level 20-fold lower than steady-state levels achieved clinically [1]. GSH loss induced by L-buthionine-S,R-sulfoximine (BSO) leads to overproduction of reactive oxygen species (ROS) and triggers apoptosis of MYCN-amplified neuroblastoma cells [2]. |
| In vivo | Systemic BSO administration selectively altered GSH homeostasis and EAAT3 levels in the mice cerebellum. Intraperitoneal treatment of mice with 6?mmol/kg of BSO depleted GSH and GSSG in the liver at 2?h of treatment [3]. |
| Synonyms | L-Butionine sulfoximine |
| Molecular Weight | 222.31 |
| Formula | C8H18N2O3S |
| Cas No. | 83730-53-4 |
| Smiles | CCCCS(=N)(=O)CC[C@H](N)C(O)=O |
| Relative Density. | 1.29 g/cm3 |
| Storage | keep away from moisture,store at low temperature | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice/Shipping at ambient temperature. | |||||||||||||||||||||||||||||||||||
| Solubility Information | DMSO: Insoluble H2O: 50 mg/mL (224.91 mM), Sonication is recommended. | |||||||||||||||||||||||||||||||||||
Solution Preparation Table | ||||||||||||||||||||||||||||||||||||
H2O
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Dissolve 2 mg of the compound in 100 μL DMSO
to obtain a stock solution at a concentration of 20 mg/mL . If the required concentration exceeds the compound's known solubility, please contact us for technical support before proceeding.
1) Add 100 μL of the DMSO
stock solution to 400 μL PEG300
and mix thoroughly until the solution becomes clear.
2) Add 50 μL Tween 80 and mix well until fully clarified.
3) Add 450 μL Saline,PBS or ddH2O
and mix thoroughly until a homogeneous solution is obtained.
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