Melting_Point:	270-273ºC
CAS:	59-51-8
MF:	C5H11NO2S
Flash_Point:	139.4±26.5 °C
Product_Name:	DL-Methionine
Density:	1.2±0.1 g/cm3
FW:	149.211
Bolling_Point:	306.9±37.0 °C at 760 mmHg

Refractive_Index:	1.531
Vapor_Pressure:	0.0±1.4 mmHg at 25°C
Flash_Point:	139.4±26.5 °C
LogP:	0.37
Bolling_Point:	306.9±37.0 °C at 760 mmHg
PSA:	88.62000
Molecular_Structure:	['五分子性质数据 ', '1 . Molar refractive index 3826 ', '2 . Molar volume 1237 ', '3 . Parachor （902K）3299 ', '4 . Surface tension 505 ', '5 . Polarizability 1517']
Computational_Chemistry:	['1. XlogP :N/A ', '2. Hydrogen Bond Donor Count :2 ', '3. Hydrogen Bond Acceptor Count :4 ', '4. Rotatable Bond Count :4 ', '5. Isotope Atom Count :N/A ', '6. TPSA 886 ', '7. Heavy Atom Count :9 ', '8. Topological Polar Surface Area :0 ', '9. Complexity :97 ', '10. Isotope Atom Count :0 ', '11. Defined Atom Stereocenter Count :0 ', '12. Undefined Atom Stereocenter Count :1 ', '13. Defined Bond Stereocenter Count :0 ', '14. Undefined Bond Stereocenter Count :0 ', '15. Covalently-Bonded Unit Count :1']
Melting_Point:	270-273ºC
MF:	C5H11NO2S
Exact_Mass:	149.051056
FW:	149.211
Density:	1.2±0.1 g/cm3
More_Info:	['1 . Appearance White 片状结晶or 粉末。 ', '2 . Density（g/mL,25/4℃）1340 ', '3 . Relative vapor density（g/mL,Atmosphere =1）Unknow ', '4 . Melting point（ºC）281℃（分解） ', '5 . Boiling point（ºC,Atmospheric pressure）Unknow ', '6 . Boiling point（ºC,52kPa）Unknow ', '7 . Refractive indexUnknow ', '8 . Flash point（ºC）Unknow ', '9 . Specific rotation（º）Unknow ', '10 . Spontaneous ignition point or ignition temperature（ºC）Unknow ', '11 . Vapor pressure（kPa,25ºC）Unknow ', '12 . Saturated vapor pressure（kPa,60ºC）Unknow ', '13 . Combustion heat（KJ/mol）Unknow ', '14 . Critical temperature（ºC）Unknow ', '15 . Critical pressure（KPa）Unknow ', '16 . Oil-water（Octanol /Water ）Logarithmic Value of Distribution Coefficient Unknow ', '17 . Upper limit of explosion（%,V/V）Unknow ', '18 . Lower limit of explosion（%,V/V）Unknow ', '19 . Solubility Soluble in Water 稀酸and 稀碱，极微Soluble in 95%的 Ethanol ，Insoluble in Ethyl ether 。']

Risk_Statements(EU):	R33
WGK_Germany:	2
Personal_Protective_Equipment:	Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter
RTECS:	PD0457000
RIDADR:	NONH for all modes of transport
Hazard_Codes:	Xi: Irritant;
HS_Code:	2930400000
Safety_Statements:	S24/25