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VAQORACarboxylic Acids & SaltsAvailable on request
L-Selenomethionine, ≥98%
Synonyms: (S)-2-Amino-4-(methylseleno)butyric acid · Seleno-L-methionine · (2S)-2-amino-4-(methylseleno)butanoic acid · Selenomethionine-L
CAS No.3211-76-5
FormulaC5H11NO2Se
Mol. weight196.12
Catalogue No.VQ-008515
Purity≥98%
HSN29332990
L-Selenomethionine (CAS 3211-76-5) – carboxylic acid, ≥98%. C5H11NO2Se, MW 196.12. Order from Vaqora Chemicals with COA and global delivery.
Batch COA with every lot
16-section GHS SDS
Export to 120+ countries
DG-compliant packing
About L-Selenomethionine, ≥98%
Vaqora Chemicals supplies L-Selenomethionine, a carboxylic acid registered under CAS number 3211-76-5, specified at ≥98% purity. With the molecular formula C5H11NO2Se, it has a molar mass of 196.12 g/mol. The IUPAC name is (2S)-2-amino-4-methylselanylbutanoic acid. It is also known as (S)-2-Amino-4-(methylseleno)butyric acid or Seleno-L-methionine.
It is supplied as white to yellow powder or crystals. Literature values give a melting point of 267 °C. Store it at 2–8 °C, in a tightly closed container. The GHS classification uses the signal word “Danger”, so appropriate gloves, eye protection and ventilation are recommended.
Typical applications include organic synthesis and API synthesis. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.
Standard pack sizes are 250 mg, 1 g and 5 g, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.
Specifications & identifiers
| Product name | L-Selenomethionine, ≥98% |
|---|---|
| Catalogue No. | VQ-008515 |
| CAS Number | 3211-76-5 |
| IUPAC name | (2S)-2-amino-4-methylselanylbutanoic acid |
| Molecular formula | C5H11NO2Se |
| Molecular weight | 196.12 g/mol |
| Exact mass | 196.9955 |
| Purity / assay | ≥98% |
| HSN code | 29332990 |
| InChIKey | RJFAYQIBOAGBLC-BYPYZUCNSA-N |
| SMILES | C[Se]CC[C@@H](C(=O)O)N |
| PubChem CID | 105024 |
| Physical form | Crystalline |
|---|---|
| Appearance | White to yellow powder or crystals |
| Melting point | 267 °C |
| H-bond donors / acceptors | 2 / 3 |
| TPSA | 63.3 Ų |
| Storage | 2–8 °C |
| Synonyms | (S)-2-Amino-4-(methylseleno)butyric acid, Seleno-L-methionine, (2S)-2-amino-4-(methylseleno)butanoic acid, Selenomethionine-L, (2S)-2-azaniumyl-4-methylselanylbutanoate, L-(+)-Selenomethionine, Selenium-L-methionine, L-Selenomethioninum, (S)-2-Amino-4-(methylselanyl)butanoic acid, (S)-2-Amino-4-(methylseleno)butanoic acid, (2s)-2-amino-4-(methylselanyl)butanoic acid, Butyric acid, 2-amino-4-(methylselenyl)-, L- |
Safety & hazard information (GHS)
Signal word: Danger
Hazard statements
H301Toxic if swallowedH331Toxic if inhaledH373May causes damage to organs through prolonged or repeated exposureH400Very toxic to aquatic lifeH410Very toxic to aquatic life with long lasting effects
Precautionary statements: P260, P261, P264, P270, P271, P273, P301 + P316, P304 + P340, P316, P319, P321, P330, P391, P403 + P233, P405, P501
Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.
Documents
Frequently asked questions
What is the CAS number of L-Selenomethionine, ≥98%?
The CAS Registry Number of L-Selenomethionine, ≥98% is 3211-76-5. It is also known as (S)-2-Amino-4-(methylseleno)butyric acid, Seleno-L-methionine, (2S)-2-amino-4-(methylseleno)butanoic acid.
What is the molecular formula and molecular weight of L-Selenomethionine, ≥98%?
L-Selenomethionine, ≥98% has the molecular formula C5H11NO2Se and a molecular weight of 196.12 g/mol. Its IUPAC name is (2S)-2-amino-4-methylselanylbutanoic acid.
Which grade and pack sizes of L-Selenomethionine, ≥98% can I order?
We supply L-Selenomethionine, ≥98% in (≥98%) grade, in 250 mg, 1 g, 5 g packs. Larger bulk quantities and custom packing are quoted on request.
Do you provide a COA and SDS with L-Selenomethionine, ≥98%?
Yes. Every lot of L-Selenomethionine, ≥98% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.
Can L-Selenomethionine, ≥98% be shipped internationally?
Yes. L-Selenomethionine, ≥98% is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.
How should L-Selenomethionine, ≥98% be stored?
2–8 °C. Keep the container tightly closed and refer to the SDS for full handling guidance.
Enquire about L-Selenomethionine, ≥98%
We reply within one business day with price, pack options, lead time and documentation.
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