Properties: Platelets, mp 226-227° with dec. Soluble in water (approx 1 g/2 ml); sol in 95% alc (0.65 g/100 ml). Reasonably stable at room temp; shows no decompn in a few days at 60°. Liquefies on exposure to 80% relative humidity. pH of a 1% water soln 2.4. uv max (pH 1.94): 287.5 nm (E mol 91,000).
Melting point: mp 226-227° with dec
Absorption maximum: uv max (pH 1.94): 287.5 nm (E mol 91,000)
Derivative Type: Free base
Properties: Crystals from alc; mp 193-193.5°; sol in alc.
Melting point: mp 193-193.5°
Derivative Type: Pyridoxamine phosphate
Additional Names: 2-Methyl-3-hydroxy-4-aminomethyl-5-pyridylmethylphosphoric acid
Percent Composition: C 38.72%, H 5.28%, N 11.29%, O 32.23%, P 12.48%
Literature References: Prepn in soln by autoclaving codecarboxylase with glutamic acid: McNutt, Snell, J. Biol. Chem.
182, 557 (1950); prepn by direct phosphorylation of pyridoxamine in aq soln with phosphorus oxychloride: Heyl et al., J. Am. Chem. Soc.
73, 3430 (1951).
产品链接: 524-36-7››