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105707 L-甲硫胺酸

L-Methionine for biochemistry. CAS 63-68-3, pH 5 - 7 (10 g/l, H₂O, 20 °C).

L-甲硫胺酸 MSDS (material safety data sheet) or SDS, CoA and CoQ, dossiers, brochures and other available documents.

Synonyms: Met

105707
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Overview

Replacement Information

Key Spec Table

CAS #Empirical Formula
63-68-3C₅H₁₁NO₂S

Products

Catalogue NumberPackaging Qty/Pack
1.05707.0025 塑膠瓶 25 g
1.05707.0100 塑膠瓶 100 g
1.05707.1000 塑膠瓶 1 kg
Description
Catalogue Number105707
SynonymsMet
References
Product Information
CAS number63-68-3
EC number200-562-9
Hill FormulaC₅H₁₁NO₂S
Molar Mass149.21 g/mol
HS Code2930 40 10
Structure formula ImageStructure formula Image
Quality LevelMQ100
Applications
ApplicationL-Methionine for biochemistry. CAS 63-68-3, pH 5 - 7 (10 g/l, H₂O, 20 °C).
Biological Information
Physicochemical Information
Density1.34 g/cm3 (20 °C)
Melting Point280 - 282 °C
pH value5 - 7 (10 g/l, H₂O, 20 °C)
Bulk density550 kg/m3
Solubility48 g/l
Dimensions
Materials Information
Toxicological Information
LD 50 oralLD50 Rat 36000 mg/kg
Safety Information according to GHS
RTECSPD0457000
Storage class10 - 13 Other liquids and solids
WGKWGK 1 slightly hazardous to water
Disposal3
Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.
Safety Information
Product Usage Statements
Storage and Shipping Information
StorageStore at +5°C to +30°C.
Packaging Information
Transport Information
Supplemental Information
Specifications
Assay (perchloric acid titration, calculated on dried substance)≥ 99.0 %
Identity (IR-spectrum)passes test
Appearancewhite or almost white, crystalline powder or colorless crystals
Appearance of solution (0.5 mol/l, hydrochloric acid 1 mol/l)clear and colorless
Spec. rotation (α 20/D, 50 g/l, hydrochloric acid 1 mol/l, calc. on dried substance)+22.5 to +23.5
UV-Absorption (260 nm, 0.5 mol/l, 1 cm, hydrochloric acid 1 mol/l)≤ 0.50
UV-Absorption (280 nm, 0.5 mol/l, 1 cm, hydrochloric acid 1 mol/l)≤ 0.20
Chloride (Cl)≤ 0.02 %
Sulfate (SO₄)≤ 0.01 %
Heavy metals (as Pb)≤ 0.001 %
As (Arsenic)≤ 0.0005 %
Ca (Calcium)≤ 0.001 %
Co (Cobalt)≤ 0.0005 %
Fe (Iron)≤ 0.0005 %
K (Potassium)≤ 0.0005 %
Mg (Magnesium)≤ 0.0005 %
Na (Sodium)≤ 0.005 %
NH₄ (Ammonium)≤ 0.01 %
Zn (Zinc)≤ 0.0005 %
Foreign amino acids≤ 0.3 %
Other ninhydrine positive substances≤ 0.1 %
Loss on drying (105 °C; 3 h)≤ 0.3 %
Global Trade Item Number
Catalogue Number GTIN
1.05707.0025 04022536067612
1.05707.0100 04022536067629
1.05707.1000 04022536067636