Seleno-L-cystine
Seleno-L-cystine (CAS: 29621-88-3), with the molecular formula CO2HCH(NH2)CH2(Se)2CH2CH(NH2)CO2H and a molecular weight of 334.09 g/mol, is a diselenium derivative of the amino acid L-cysteine. This compound serves as a crucial building block for the synthesis of biologically active selenol compounds and finds applications in chemical biology and peptide chemistry. Available from TSS with an assay of 95%, it requires storage at 2-8°C.
- IUPAC
- (R,R)-3,3′-Diseleno-bis(2-aminopropionic acid),L-Selenocystine
Chemical Biology Research
Seleno-L-cystine acts as a fundamental component in the creation of novel selenol compounds, facilitating research into biological pathways involving selenium. Its unique structure allows for incorporation into peptides and proteins, enabling studies on selenium's role in cellular functions.
Peptide Synthesis
As an unnatural amino acid derivative, Seleno-L-cystine is valuable in peptide chemistry for introducing selenium into peptide backbones. This enables the development of modified peptides with altered properties or specific biological activities for research purposes.
Chemical Synthesis Building Block
This compound is utilised as a versatile building block in organic synthesis, particularly for constructing complex molecules containing selenium. Researchers can leverage its reactive sites for diverse synthetic transformations.
| Molecular weight | 334.09 |
|---|---|
| Linear formula | CO2HCH(NH2)CH2(Se)2CH2CH(NH2)CO2H |
| Assay | 95% |
| Optical activity | [α]20/D −28°, c = 1 in NaOH |
| Storage temperature | 2-8°C |
| Application | Used as a building block biologically active selenol compounds.1 |
| Melting point | 224.5-229.5 °C(lit.) |
Hazard statements
- H301Toxic if swallowed
- H331Toxic if inhaled
- H373May cause damage to organs through prolonged exposure
- H410Very toxic to aquatic life with long-lasting effects
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P273Avoid release to the environment
- P301IF SWALLOWED
- P311Call a POISON CENTER or doctor
- P501Dispose of contents and container per local regulations
| Protective equipment | Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 3283 6.1 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T,N |
| Risk statements (R) | 23/25-33-50/53 |
| Safety statements (S) | 20/21-28-45-60-61 |
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 Seleno-L-cystine used for?
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Seleno-L-cystine is used as a building block for biologically active selenol compounds and in chemical biology and peptide chemistry research.
What are the CAS number and molecular formula for Seleno-L-cystine?
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The CAS number for Seleno-L-cystine is 29621-88-3, and its molecular formula is CO2HCH(NH2)CH2(Se)2CH2CH(NH2)CO2H.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Seleno-L-cystine with an assay of 95%. TSS does not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
How should Seleno-L-cystine be handled and stored?
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Seleno-L-cystine is a Danger substance classified with GHS06, GHS08, and GHS09 symbols. It is acutely toxic if swallowed or inhaled (H301, H331), may cause damage to organs through prolonged exposure (H373), and is very toxic to aquatic life with long-lasting effects (H410). Handle with appropriate personal protective equipment, including eyeshields, face shields, gloves, and P2 respirator cartridges. Store at 2-8°C.
How is Seleno-L-cystine shipped and exported?
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Seleno-L-cystine is shipped and exported under UN 3283, Hazard Class 6.1, Packing Group III, conforming to stringent international regulations for hazardous materials transport.
How can I request a sample or quote for Seleno-L-cystine?
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To request a sample or a quote for Seleno-L-cystine, please contact the Tech Serve Solutions sales team via our website or directly by phone.
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