1. Apoptosis
  2. Ferroptosis
  3. D,L-Buthionine-(S,R)-sulfoximine

D,L-Buthionine-(S,R)-sulfoximine (Synonyms: Butionine sulfoximine)

Cat. No.: HY-106376 Purity: >98.0%
Handling Instructions

D,L-Buthionine-(S,R)-sulfoximine is a potent inhibitor of glutamylcysteine synthetase biosynthesis.

For research use only. We do not sell to patients.

D,L-Buthionine-(S,R)-sulfoximine Chemical Structure

D,L-Buthionine-(S,R)-sulfoximine Chemical Structure

CAS No. : 5072-26-4

Size Price Stock Quantity
10 mM * 1 mL in Water USD 66 In-stock
Estimated Time of Arrival: December 31
50 mg USD 60 In-stock
Estimated Time of Arrival: December 31
100 mg   Get quote  
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Customer Review

Based on 1 publication(s) in Google Scholar

Other Forms of D,L-Buthionine-(S,R)-sulfoximine:

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D,L-Buthionine-(S,R)-sulfoximine is a potent inhibitor of glutamylcysteine synthetase biosynthesis.

IC50 & Target

glutamylcysteine synthetase[1]

In Vitro

Buthionine sulfoximine is an analogs of methionine sulfoximine and inhibits gamma-glutamylcysteine synthetase about 20 times more effectively than prothionine sulfoximine and at least 100 times more effectively than methionine sulfoximine[1].

In Vivo

Treatment of mice bearing HT1080 and HT1080/DR4 xenografts with a continuous i.v infusion of nontoxic doses of D,L-Buthionine-(S,R)-sulfoximine (300 and 600 mg/kg/day) produce a 60% reduction of GSH plasma levels and greater than 95 % reduction in GSH tumor levels in both parental and multidrug-resistant tumors[2].

Molecular Weight









Room temperature in continental US; may vary elsewhere.

Powder -20°C 3 years
In solvent -80°C 6 months
  -20°C 1 month
Solvent & Solubility
In Vitro: 

H2O : 41.67 mg/mL (187.44 mM; Need ultrasonic)

Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 4.4982 mL 22.4911 mL 44.9822 mL
5 mM 0.8996 mL 4.4982 mL 8.9964 mL
10 mM 0.4498 mL 2.2491 mL 4.4982 mL
*Please refer to the solubility information to select the appropriate solvent.
Animal Administration


D,L-Buthionine-(S,R)-sulfoximine is dissolved in sterile 0.9% saline, filtered through a 0.2-p.m polysulfone membrane filter, and administered by 48-h continuous iv. infusion at a dose of 300 mg/kg/day and 600 mg/kg/day starting at 24 h before doxorubicin administration. In vivo GSH levels after treatment with D,L-Buthionine-(S,R)-sulfoximine at a dose of 300 mg/kg and 600 mg/kg for 24 h as an iv. continuous infusion in munine plasma and in tumor tissue of HT1080 and HT1080/DR4 xenografts is measured[2].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

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D,L-Buthionine-(S,R)-sulfoximineButionine sulfoximineFerroptosisInhibitorinhibitorinhibit

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