C5H10O3S
150.2 g/mol
Food AdditiveDanger
2-Hydroxy-4-methylthiobutanoic acid
CAS583-91-5EC209-523-0
Category
Food Additive
Compound Class
Organic Acid
Primary Use
livestock dietary supplement
2-Hydroxy-4-methylthiobutanoic acid is a light brown liquid used as a livestock dietary supplement. It is commonly included in animal feed to provide a source of methionine activity.
livestock dietary supplementpoultry feed additive
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
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dietary supplement and food additive
ReferenceSame Category
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bulk sweetener for low calorie foods
ReferenceSame Category
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Noncariogenic bulk sweetener
ReferenceSame Category
3-heptanol
CAS589-82-2
Flavoring agent or adjuvant
Referencestereoisomer of
Desmeninol calcium
CAS4857-44-7
pharmaceutical raw material
Safety Reference
Danger
H315Causes skin irritation
H318Causes serious eye damage
H335May cause respiratory irritation
H412Harmful to aquatic life with long lasting effects
H303May be harmful if swallowed
H313May be harmful in contact with skin
Customs Tariff Classification
The international HS code for 2-Hydroxy-4-methylthiobutanoic acid (CAS 583-91-5) is 2930.90.
HS code (international, 6-digit)
2930.90
EU CN code (8-digit)
2930 90 30
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-hydroxy-4-methylsulfanylbutanoic acid
InChIKey
ONFOSYPQQXJWGS-UHFFFAOYSA-N
SMILES
CSCCC(C(=O)O)O
Synonyms (21)
- MHA-FA
- Alimet
- Desmeninol
- MHA acid
- alpha-Hydroxy-DL-methionine
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