Product
Supplier
Encyclopedia
Inquiry
(40% Selenium) buy - large image1
(40% Selenium) buy - image1

(40% Selenium)

1 Inquiries

Unit Price: Get Latest Price
CAS No.:

3211-76-5

Grade:

Industrial Grade

Packaging:

1kg/bag

Price valid (until):

2025-08-24

Company Type:
Trader
Location:
China
Qualification:
Main Products:

Nitrocefin,POLYANETHOLESULFONIC ACID SODIUM,Phenazine methosulfate,2-Amino-4-bromo-3-fluorobenzoic acid,Cholesterol

  • Product Description

  • Seller Information

  • Inquiry History

  • Description


      Product Detail  


    L-Selenomethionine
    High-Purity, Bio-available Selenium Source

    Product Snapshot
    • CAS: 3211-76-5 | Formula: C₅H₁₁NO₂Se | MW: 196.11
    • Appearance: white crystalline powder, ≥ 99 % (HPLC)
    • Solubility: 39 mg mL⁻¹ in water (25 °C)

    Key Applications
    1. Nutrient & Dietary Supplements
    – Provides organic selenium with superior absorption vs. inorganic salts
    – Supports thyroid function, immune response, and antioxidant status

    2. Pharmaceutical Research
    – Proven cancer-chemopreventive agent; selectively induces apoptosis in malignant cells
    – Radioprotective: mitigates radiation-induced oxidative stress

    3. Structural Biology
    – Ideal for seleno-methionine labeling of recombinant proteins for X-ray crystallography

    4. Animal & Aquaculture Nutrition
    – Enhances growth, immunity, and fillet selenium content under stress conditions

    Quality & Packaging
    • Grades: USP / EP
    • Packaging: 1 g, 10 g, 100 g amber glass vials; bulk on request
    • Storage: 2–8 °C, protect from light and moisture; 3-year shelf life

    Documentation
    • CoA, MSDS, DMF available; audit & tech support on demand.

    One-line summary
    L-Selenomethionine delivers highly bio-available selenium for advanced nutraceutical, pharmaceutical, and structural-biology applications.

    Basic Info
    Product Name:

    L-Selenomethionine

    Other Name:

    Butanoic acid,2-amino-4-(methylseleno)-,(2S)-;Butyric acid,2-amino-4-(methylselenyl)-,L-;Butanoic acid,2-amino-4-(methylseleno)-,(S)-;(2S)-2-Amino-4-(methylseleno)butanoic acid;Seleno-L-methionine;Selenomethionine;L-Selenomethionine;SelenoSource AF 2000;Selenomax;SelenoSource AF 600;SelenoSource AF;Vitaselenium;Prince Se Yeast 2000;(2S)-2-Azaniumyl-4-methylselanylbutanoate

    CAS No.:

    3211-76-5

    Molecular Formula:

    C5H11NO2Se

    InChIKeys:

    InChIKey=RJFAYQIBOAGBLC-BYPYZUCNSA-N

    Molecular Weight:

    196.11

    Exact Mass:

    196.11

    EC Number:

    2017-001-1

    UNII:

    964MRK2PEL

    NSC Number:

    760370

    DSSTox ID:

    DTXSID8046824

    NCI Thesaurus Code:

    C2833

    HScode:

    2922499990

    Categories:

    Nutrition Supplements

    Characteristics
    PSA:

    63.3

    XLogP3:

    0.65930

    Appearance:

    white to off-white powder

    Melting Point:

    275 °C (decomp)

    Boiling Point:

    320.78°C at 760 mmHg

    Flash Point:

    147.8±26.5 °C

    Refractive Index:

    18 ° (C=0.5, 2mol/L HCl)

    Water Solubility:

    H2O: 50 mg/mL

    Storage Conditions:

    −20°C

    Specific rotation:

    18 º (c=1, 1N HCl)

    Collision Cross Section:

    137.67 Ų [M+H]+ [CCS Type: DT, Method: stepped-field]|150 Ų [M-H]-

    Hazard Identification

    Classification of the substance or mixture

    Acute toxicity - Category 3, Oral

    Acute toxicity - Category 3, Inhalation

    Specific target organ toxicity – repeated exposure, Category 2

    Hazardous to the aquatic environment, short-term (Acute) - Category Acute 1

    Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 1

    GHS label elements, including precautionary statements

    Pictogram(s)
    Signal word

    Danger

    Hazard statement(s)

    H301 Toxic if swallowed

    H331 Toxic if inhaled

    H373 May cause damage to organs through prolonged or repeated exposure

    H410 Very toxic to aquatic life with long lasting effects

    Precautionary statement(s)
    Prevention

    P264 Wash ... thoroughly after handling.

    P270 Do not eat, drink or smoke when using this product.

    P261 Avoid breathing dust/fume/gas/mist/vapours/spray.

    P271 Use only outdoors or in a well-ventilated area.

    P260 Do not breathe dust/fume/gas/mist/vapours/spray.

    P273 Avoid release to the environment.

    Response

    P301+P316 IF SWALLOWED: Get emergency medical help immediately.

    P321 Specific treatment (see ... on this label).

    P330 Rinse mouth.

    P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.

    P316 Get emergency medical help immediately.

    P319 Get medical help if you feel unwell.

    P391 Collect spillage.

    Storage

    P405 Store locked up.

    P403+P233 Store in a well-ventilated place. Keep container tightly closed.

    Disposal

    P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.

    Other hazards which do not result in classification

    no data available

    Handling and Storage

    Precautions for safe handling

    Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

    Conditions for safe storage, including any incompatibilities

    Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.

  • Seller Information
    Business Type:

    Trader

    Main Products:

    Nitrocefin,POLYANETHOLESULFONIC ACID SODIUM,Phenazine methosulfate,2-Amino-4-bromo-3-fluorobenzoic acid,Cholesterol

    Location:

    Building J, 5th Building, No. 3131, Jinshajiang Road, Jiading District, Shanghai

    Payment Terms:

    100% TT in advance

    Average lead Time:

    20

    Total Annual Revenue:

    $1 million-$2.5 million

    Total Employees:

    11-50

    Year of Establishment:

    2021

    Shanghai Baobo Luo New Material Technology Co., Ltd. is a national high-tech enterprise with RMB 3 million in capital and a 20,000 m² facility in Qianjiang National Chemical Park, Hubei. We specialize in pharmaceutical intermediates, plant-derived cholesterol and derivatives for pharma, feed, food and cosmetic use. Automated production, precision testing and ISO-compliant quality/safety systems guarantee consistent, reliable products. 

  • Inquiry History
    1 Inquiries
    Country Product Purchase Quantity Date Posted
    United States

    Selenomethionine Powder 98%

    25 KG Apr 30, 2026
    Post an enquiry for this product
pic ×

Scan the QR Code to Share

All products displayed on this website are only for non-medical purposes such as industrial applications or scientific research, and cannot be used for clinical diagnosis or treatment of humans or animals. They are not medicinal or edible.

According to relevant laws and regulations and the regulations of this website, units or individuals who purchase hazardous materials should obtain valid qualifications and qualification conditions.

The information shown above is provided by the enterprise itself, and the authenticity, accuracy and legitimacy of the content are the responsibility of the publishing company. ECHEMI does not bear any guarantee responsibility for this. Please be aware that risks in internet transactions objectively exist.

Feedback & Suggestions
Send Message

Thank you for your feedback. If you require further assistance, please contact us by email at info@echemi.com or call us at +86-532-55729510.