S-Allyl-L-cysteine
S-Allyl-L-cysteine (CAS 21593-77-1), with the molecular formula C6H11NO2S and a molecular weight of 161.22 g/mol, is a compound derived from garlic. It is recognised for its antioxidant and cytoprotective properties. S-Allyl-L-cysteine plays a role in cellular signaling pathways, particularly concerning cell stress and nitric oxide metabolism, making it valuable in cell biology research.
- IUPAC
- L-Deoxyalliin,S-allyl-cysteine,S-allylcysteine,SAC
- Synonyms
- L-DeoxyalliinS-allyl-cysteineS-allylcysteineSAC

Antioxidant and Cytoprotective Research
S-Allyl-L-cysteine serves as a valuable tool in studies investigating cellular defence mechanisms against oxidative stress and damage. Its antioxidant capabilities help protect cells from harmful reactive oxygen species.
Cell Biology and Signaling Studies
This compound is employed in research focused on cell signaling pathways, including those related to nitric oxide metabolism and cellular responses to stress. It aids in understanding fundamental cellular processes.
Neuroscience Research Applications
Given its role in cell signaling, S-Allyl-L-cysteine finds application in neuroscience research, potentially contributing to the understanding of neuronal protection and function under various conditions.
| Molecular weight | 161.22 |
|---|---|
| Empirical formula | C6H11NO2S |
| Assay | ≥98% (HPLC) |
| Solubility | H2O: >10 mg/mL |
| Optical activity | [α]/D -8 to -15°, c = 1 in H2O |
| Storage temperature | 2-8°C |

Hazard statements
- H317May cause an allergic skin reaction
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
| Water hazard class (WGK, DE) | 3 |
|---|---|
| Hazard codes (EU) | Xi |
| Risk statements (R) | 43 |
| Safety statements (S) | 36/37 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is S-Allyl-L-cysteine used for?
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S-Allyl-L-cysteine is used in research for its antioxidant and cytoprotective properties, and in studies of cell biology, cell signaling, neuroscience, and cell stress, including nitric oxide metabolism.
What is the CAS number and formula for S-Allyl-L-cysteine?
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The CAS number for S-Allyl-L-cysteine is 21593-77-1, and its empirical formula is C6H11NO2S.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies S-Allyl-L-cysteine with a purity of ≥98% (HPLC). We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
How should S-Allyl-L-cysteine be handled?
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S-Allyl-L-cysteine is classified with a Warning signal word and carries the hazard statement H317, indicating it may cause an allergic skin reaction. Handle with appropriate personal protective equipment, including gloves and protective clothing (P280, H317).
How is S-Allyl-L-cysteine packed, shipped, and exported?
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Tech Serve Solutions expertly packs, handles, and exports S-Allyl-L-cysteine globally, adhering to all necessary regulations for chemical shipments.
How can I request a sample or quote for S-Allyl-L-cysteine?
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To request a sample or obtain a quote for S-Allyl-L-cysteine, please contact our sales team through the website or via direct enquiry.
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