L-Buthionine sulfoximine
Also known as: L-Buthionine-(S,R)-sulfoximine, L-BSO, Buthionine sulfoximine, L-Buthionine-S,R-sulfoximine, L-Buthionine S,R-sulphoximine, L-Buthionine sulfoximine, Butanoic acid, 2-amino-4-(S-butylsulfonimidoyl)-, (2S)-
L-Buthionine sulfoximine (CAS 83730-53-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H18N2O3S and a molecular weight of 222.305 g/mol. Key properties include a melting point of 224-228ºC (dec.), a boiling point of 382.3±52.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 185.0±30.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 83730-53-4
- Jingsj CID
- J-33376-2
- Molecular Formula
- C8H18N2O3S
- Molecular Weight
- 222.305 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 224-228ºC (dec.) |
|---|---|
| Boiling Point | 382.3±52.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 185.0±30.7 °C |
| Exact Mass | 222.103806 |
| PSA | 112.62000 |
| LogP | 0.22 |
| Vapor Pressure | 0.0±1.9 mmHg at 25°C |
| Refractive Index | 1.538 |
Activity & Biological Data
| Target | γ-glutamylcysteine synthetase[1]. |
|---|---|
| Additional Information | [1]. Fruehauf JP, et al. Selective and synergistic activity of L-S,R-buthionine sulfoximine on malignant melanoma is accompanied by decreased expression of glutathione-S-transferase. Pigment Cell Res. 1997 Aug;10(4):236-49. [2]. Reliene R, et al. Glutathione depletion by buthionine sulfoximine induces DNA deletions in mice. Carcinogenesis. 2006 Feb;27(2):240-4. |
Customs & Trade Information
| HS Code | 2925290090 |
|---|---|
| Summary | 2925290090 other imines and their derivatives; salts thereof。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of L-Buthionine sulfoximine?
The CAS number of L-Buthionine sulfoximine is 83730-53-4.
What are the molecular formula and molecular weight of L-Buthionine sulfoximine?
L-Buthionine sulfoximine has molecular formula C8H18N2O3S and molecular weight 222.305 g/mol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "L-Buthionine sulfoximine (CAS 83730-53-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-33376-2 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.