Methionine hydroxy analog
- Butyric acid, 2-hydroxy-4-(methylthio)
- Butanoic acid, 2-hydroxy-4-(methylthio)
- 2-Hydroxy-4-(methylthio)butanoic acid
- DL-2-Hydroxy-4-(methylmercapto)butanoic acid
Light brown liquid.
In poultry feed.
Registry Numbers and Inventories.
Melting point, °C
Boiling point, °C
Vapor density (air=1)
1.21-1.23 g/cm3 (20 C)
Solubility in water
Partition coefficient, pKow
Hazards and Protection.
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Chemical splash goggles in compliance with OSHA regulations are advised; however, OSHA regulations also permit other type safety glasses. Whre chemical resistant gloves. To prevent repeated or prolonged skin contact, wear impervious clothing and boots.
Use NIOSH/MSHA approved respirator appropriate for exposure of concern.
Neutralizing Agents for Acids and Caustics: Sodium bicarbonate solution. Flush with water.
Incompatible with acids, diazo and azo compounds, halocarbons, isocyanates, aldehydes, alkali metals, nitrides, hydrides, and other strong reducing agents Reactions with these materials generate heat and in many cases hydrogen gas Flammable and/or toxic gases are generated by combination with with alkali metals, nitrides, and strong reducing agents Reacts with oxoacids and carboxylic acids to form esters plus water Incompatible with oxidizing agents Reacts in this way with all bases, both organic (for example, the amines) and inorganic.
Fire Extinguishing Agents: Water spray, alcohol foam, dry chemical, carbon dioxide.
Corrosive to the eyes and moderately irritating to the skin.
Seek medical attention. If individual is drowsy or unconscious, do not give anything by mouth; place individual on the left side with the head down. Contact a physician, medical facility, or poison control center for advice about whether to induce vomiting. If possible, do not leave individual unattended.
If symptoms develop, move individual away from exposure and into fresh air. If symptoms persist, seek medical attention. If breathing is difficult, administer oxygen. Keep person warm and quiet; seek immediate medical attention.
Remove contaminated clothing. Flush with plenty of water.
Flush with plenty of water for at least 15 minutes.
USCG CHRIS Code
4 Organic acids
IMO Chemical Code
IMO Pollution Category
IMO Hazard code