Se-(Methyl)selenocysteine hydrochloride
Se-(Methyl)selenocysteine hydrochloride (CAS: 863394-07-4), with the molecular formula C4H9NO2Se · HCl and a molecular weight of 218.54 g/mol, is a selenium-containing amino acid derivative. It is recognised for its antioxidant properties and role in cellular processes. This compound is primarily utilised in biochemical research, particularly in studies related to oxidative stress, apoptosis, and cancer research.

Antioxidant Research
Se-(Methyl)selenocysteine hydrochloride serves as a valuable tool in investigating the mechanisms of oxidative stress and the protective effects of antioxidants. Its selenium component is crucial for the function of various antioxidant enzymes.
Cancer Research Studies
This compound is employed in preclinical research to explore its potential chemopreventive and anti-cancer activities. It aids in understanding cellular pathways involved in cancer development and progression.
Cell Biology Investigations
Utilised in cell culture studies, Se-(Methyl)selenocysteine hydrochloride helps researchers examine its impact on cell cycle regulation, apoptosis, and overall cell viability. It is a probe for selenium metabolism in biological systems.
| Molecular weight | 218.54 |
|---|---|
| Empirical formula | C4H9NO2Se · HCl |
| Assay | ≥95% (TLC) |
| Storage temperature | −20°C |



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
| Transport (UN / ADR) | UN 3283 6.1 / PGII |
|---|---|
| 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 Se-(Methyl)selenocysteine hydrochloride used for?
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Se-(Methyl)selenocysteine hydrochloride is primarily used in biochemical and cell biology research, particularly for studies involving antioxidants, free radical scavenging, apoptosis, cell cycle regulation, and cancer research due to its selenium content and biological activity.
What is the CAS number and formula for Se-(Methyl)selenocysteine hydrochloride?
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The CAS number is 863394-07-4, and the formula is C4H9NO2Se · HCl.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Se-(Methyl)selenocysteine hydrochloride with a purity of ≥95% (TLC). We do not represent this product as USP, BP, or EP grade; it is suitable for research purposes.
How should Se-(Methyl)selenocysteine hydrochloride be handled and stored?
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Se-(Methyl)selenocysteine hydrochloride is a toxic compound (Danger: H301-H331) and an environmental hazard (H410). Handle with appropriate personal protective equipment in a well-ventilated area. Store at -20°C. Refer to the Safety Data Sheet (SDS) for detailed handling and disposal procedures.
Is Se-(Methyl)selenocysteine hydrochloride a controlled substance?
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The provided data does not indicate that Se-(Methyl)selenocysteine hydrochloride is a controlled substance. However, users should always verify local regulations.
How is Se-(Methyl)selenocysteine hydrochloride packed and exported?
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This compound is packed according to international shipping regulations for hazardous materials, identified under UN 3283, Hazard Class 6.1, Packing Group II. Tech Serve Solutions exports globally.
How can I request a sample or quote for Se-(Methyl)selenocysteine hydrochloride?
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To request a sample or obtain a quote for Se-(Methyl)selenocysteine hydrochloride, please contact our sales team through the website or via the provided contact details, specifying the quantity required.
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