Thermo Scientific Chemicals DL-Methionine, 99+%

Catalog No.	Quantity	Packaging
AC125652500	250 g	Plastic Bottle
AC125650025	2.5 g	Glass Bottle
AC125651000	100 g	Plastic Bottle
AC125650010	1 kg	Plastic Bottle

Catalog No. AC125652500 Supplier Thermo Scientific Chemicals Supplier No. 125652500

Description

CAS: 59-51-8 | C5H11NO2S | 149.21 g/mol

This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Specifications

Chemical Identifiers

• CAS: 59-51-8
• Molecular Formula: C5H11NO2S
• Molecular Weight (g/mol): 149.21
• MDL Number: MFCD00063096
• InChI Key: FFEARJCKVFRZRR-UHFFFAOYNA-N
• Synonym: dl-methionine, methionine, racemethionine, acimetion, banthionine, cynaron, lobamine, meonine, mertionin, metione
• PubChem CID: 876
• ChEBI: CHEBI:16811
• SMILES: CSCCC(N)C(O)=O

• Ammonium: 1000ppm max.
• pH: 5.4 to 6.1 (2% w/v aq. soln.)
• Color: White
• Chloride: 200ppm max.
• Heavy Metals (as Pb): 10ppm max.
• Infrared Spectrum: Authentic
• Assay Percent Range: 99⁺%
• Loss on Drying: 0.5% max. (1 g, 105°C)
• Other Amino Acids: 0.2% max. (TLC)
• Packaging: Plastic Bottle
• Linear Formula: CH₃SCH₂CH₂CH(NH₂)CO₂H
• Beilstein: 04, II, 938
• Sulfate: 200ppm max.
• Merck Index: 15, 6047
• Transmittance: 95% min. (c=10, 2N HCl, 430nm) 1cm cell
• Sulfated Ash: 0.1% max.
• Density: 1.34g/mL
• IUPAC Name: 2-amino-4-methylsulfanylbutanoic acid
• Quantity: 250 g
• Formula Weight: 149.21
• Percent Purity: 99.0 to 101.0% (on dried substance)
• Physical Form: Crystalline Powder or Crystals
• Chemical Name or Material: DL-Methionine, 99+%

Safety and Handling

EINECSNumber	200-432-1
RTECSNumber	PD0456000
TSCA	TSCA

SDS

RUO – Research Use Only