L-Methionine, 99%,suitable for cell culture, Ph. Eur., USP grade CAS 63-68-3

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CAS: 63-68-3

MF: C₅H₁₁NO₂S

MW: 149.21

Physical Description	White crystalline powder
Identification	To pass tests
Solubility (2.5% in water)	Clear, colourless solution
pH (2.5% in water)	5.6 - 6.1
Specific Optical Rotation	+23.0 - +24.0 ° (20°C, 2% in 6 M HCl)
Specific Optical Rotation	+22.4 - +24.7 ° (25°C, 2% in 6 M HCl)
Ammonium (NH4)	≤ 0.02%
Chloride (Cl)	≤ 0.02%
Sulphate (SO4)	≤ 0.03%
Iron (Fe)	≤ 10ppm
Heavy Metals (as Pb)	≤ 5ppm
Arsenic (As2O3)	≤ 1ppm
Ninhydrin-positive substances	≤ 0.5%
Loss on Drying	≤ 0.20%
Sulfated Ash	≤ 0.1%
Endotoxins	≤ 6.0EU/g
Assay (Titration)	99.0 - 101.0 % (dried basis)
Pharmacopoeia Specification(s)	EP, USP
Origin	Non-animal
Specification Version	1.1