L-Methionine 63-68-3

L-Met-OH;L-Methionine,Animal-Free;L-METHIONINE(13C5,D8,15N);L-METHIONINE(1,2,3,4-13C4;METHYL-13CH3);ChemicalbookL-METHIONINE,REAGENTGRADE,>=98%(;L-MethionineUSP,98.5-101.5%(Titration:anhydrousbasis);L(-)-Methionin

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Model:
63-68-3
Brand:
bosschemical
Code:
63-68-3

Product Description

L-Methionine Basic information
Product Name:	L-Methionine
CAS:	63-68-3
MF:	C5H11NO2S
MW:	149.21
EINECS:	200-562-9
L-Methionine Chemical Properties
Melting point	284 °C (dec.)(lit.)
alpha	23.25 º (c=2, 6N HCl)
Boiling point	393.91°C (estimate)
density	1,34g/cm
refractive index	1.5216 (estimate)
storage temp.	20-25°C
solubility	1 M HCl: 0.5 M at 20 °C, clear, colorless
form	Solid
pka	2.13(at 25℃)
color	White
PH	5-7 (10g/l, H2O, 20℃)
optical activity	[α]20/D +23.7±0.5°, c = 5% in 5 M HCl
Water Solubility	Soluble
Merck	145,975
BRN	1722294
Stability:	Stable. Incompatible with strong oxidizing agents.
CAS DataBase Reference	63-68-3(CAS DataBase Reference)
NIST Chemistry Reference	L-Methionine(63-68-3)
EPA Substance Registry System	L-Methionine (63-68-3)

Appearance	White powder	assay	99.50%
smell	no	Impurities	no
PH	5.5-7.5	Loss on drying	<16.5%
Sulfate (SO4)	<1000ppm	Heavy metal (as Pb)	<10ppm
Aniline	<1ppm	Arsenic (As)	<3ppm
Selenium	<30ppm	Lead	<2ppm
Impurity A(Sulfamic Acid)	Meets the requirements	Absorbance	Meets the requirements
Cyclohexylamine	<10ppm	Dicyclohexylamine	<1ppm
Solubility in water	Freely soluble	Solubility in Ethanol	Slightly soluble
Sulfamic acid	<0.15	Absorbance	0.02

公司信息

L-Methionine 63-68-3 C5H11NO2S

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Controllable quality

Each batch comes with TDS/MSDS/COA; accepts third-party testing (SGS, etc.)

Chemical detection methods

Spectroscopic Analysis Methods

Ultraviolet-Vis Spectrophotometry (UV-Vis)
Infrared Spectroscopy (IR/FTIR)
Atomic Absorption Spectroscopy (AAS)
X-ray Fluorescence Spectroscopy (XRF)
Nuclear Magnetic Resonance Spectroscopy (NMR)

Chromatographic Analysis

Gas Chromatography (GC)
High Performance Liquid Chromatography (HPLC)
Ion Chromatography (IC)
Thin Layer Chromatography (TLC)

Mass Spectrometry Analysis

GC-MS / LC-MS/MS: Qualitative and Quantitative Analysis
ICP-MS: Trace Metal Elements (ppb Level)
TOF-MS: Precise Molecular Weight Determination

Electrochemical analysis methods

Polypotentiometric methods
Conductivity methods
Polarographic methods / Voltammetric methods
Coulometric analysis

Thermal Analysis Methods

Thermogravimetric Analysis (TGA)
Differential Scanning Calorimetry (DSC)
Differential Thermal Analysis (DTA)

Classical wet chemical analysis

Titration analysis
Gravity analysis