2-Hydroxy-4-(methylthio)butyric Acid

Names

[ CAS No. ]:
583-91-5

[ Name ]:
2-Hydroxy-4-(methylthio)butyric Acid

[Synonym ]:
4-methylthio-2-hydroxybutyric acid
MHA acid
DL-2-Hydroxy-4-(methylthio)butyric acid
4-methylmercapto-2-hydroxy-butyric acid
MHA
Butanoic acid,2-hydroxy-4-(methylthio)
EINECS 209-523-0
2-Hydroxy-4-(methylmercapto)butyric Acid
Desmeninol
2-Hydroxy-4-(methylthio)-butanoic Acid
Alimet
2-Hydroxy-4-(methylsulfanyl)butanoic acid
Butanoic acid, 2-hydroxy-4-(methylthio)-
α-Hydroxy-DL-methionine
MHA-FA
MFCD00070490
2-hydroxy-4-(methylthio)butyric acid
[14C]-DL-HMB
Methionine hydroxy analog

Chemical & Physical Properties

[ Density]:
1.3±0.1 g/cm3

[ Boiling Point ]:
316.5±27.0 °C at 760 mmHg

[ Molecular Formula ]:
C₅H₁₀O₃S

[ Molecular Weight ]:
150.196

[ Flash Point ]:
145.2±23.7 °C

[ Exact Mass ]:
150.035065

[ PSA ]:
82.83000

[ LogP ]:
0.35

[ Vapour Pressure ]:
0.0±1.5 mmHg at 25°C

[ Index of Refraction ]:
1.529

MSDS

Click to get detail MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :: ET4731500

CHEMICAL NAME :: Butyric acid, 2-hydroxy-4-(methylthio)-

CAS REGISTRY NUMBER :: 583-91-5

LAST UPDATED :: 199710

DATA ITEMS CITED :: 4

MOLECULAR FORMULA :: C5-H10-O3-S

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 3478 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: TOLED5 Toxicology Letters. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1977- Volume(issue)/page/year: 31(Suppl),54,1986 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 83811 No. of Facilities: 92 (estimated) No. of Industries: 2 No. of Occupations: 3 No. of Employees: 440 (estimated)

Safety Information

[ Hazard Codes ]:
Xi

[ Risk Phrases ]:
R23/24/25

[ Safety Phrases ]:
S26-S36/37/39-S45

[ RTECS ]:
ET4731500