C5H11NO2Se
196.12 g/mol
Food AdditiveDanger
Selenomethionine
CAS1464-42-2EC215-977-0
Category
Food Additive
Compound Class
Other
Primary Use
dietary supplement
Selenomethionine is an analog of the essential amino acid methionine, where selenium replaces the sulfur atom. It is primarily used as a dietary supplement to provide selenium, an essential trace element.
dietary supplementmedication
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
ReferenceSame Category
D-tartaric acid
CAS147-71-7
Synergist for antioxidants and flavoring agent
ReferenceSame Category
L-proline
CAS147-85-3
dietary supplement and nutrient
ReferenceSame Category
Magnesium glycinate
CAS14783-68-7
dietary supplement ingredient
ReferenceSame Category
BETA-TOCOPHEROL
CAS148-03-8
vitamin E food component
Referencestereoisomer of
L-selenomethionine
CAS3211-76-5
research compound
Safety Reference
Danger
H301Toxic if swallowed
H331Toxic if inhaled
H373May cause damage to organs through prolonged or repeated exposure
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects
H315Causes skin irritation
H319Causes serious eye irritation
Customs Tariff Classification
The international HS code for Selenomethionine (CAS 1464-42-2) is 2931.90.
HS code (international, 6-digit)
2931.90
EU CN code (8-digit)
2931 90 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
2-amino-4-methylselanylbutanoic acid
InChIKey
RJFAYQIBOAGBLC-UHFFFAOYSA-N
SMILES
C[Se]CCC(C(=O)O)N
Synonyms (26)
- 2-amino-5-selenahexanoic acid
- DL-Selenomethionine
- Methionine, seleno
- Radioselenomethionine
- SELENIUM METHIONINE
- SELENOMETHIONINE DL-FORM
- SELENOMETHIONINE, DL-
- Se 75, Selenomethionine
- Seleno-DL-methionine
- SelenoSource AF 2000
- Selenomethionine
- Selenomethionine (van)
- Selenomethionine[75Se]
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