L-Methionine CAS 63-68-3

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CAS: 63-68-3

MF: C₅H₁₁NO₂S

MW: 149.21

Product Categories	Amino Acids, Biochemicals, Reagents for Cell Culture
CAS RN	63-68-3
Alternative CAS RN	-
EC Number	200-562-9
MDL Number	MFCD00063097
Storage Temperature	+20°C
Shipping Temperature	Ambient
Harmonised Tariff Code	2930401000

Physical Description	White or off-white powder
Identification	IR
Solubility (5% in 1M HCl)	Clear, colourless solution
pH (1% in water)	5.6 - 6.1
Specific Optical Rotation	+22.4 - +24.7 °
Chloride (Cl)	≤ 0.05%
Sulphate (SO4)	≤ 0.03%
Heavy Metals (as Pb)	≤ 15ppm
Lead (Pb)	≤ 3ppm
Mercury (Hg)	≤ 0.1ppm
Arsenic (As)	≤ 1ppm
Cadmium (Cd)	≤ 1ppm
Iron (Fe)	≤ 30ppm
Any Individual Impurity	≤ 0.5% (TLC)
Total Impurities	≤ 2.0% (TLC)
Loss on Drying	≤ 0.3% (105°C)
Residue on Ignition	≤ 0.4%
Assay	98.5 - 101.5 %
Pharmacopoeia Specification(s)	USP
Specification Version	1.0