Derivative Type: L-Homoserine
Properties: Flat prisms from 90% alc. Dec 203°. [M]D +21.8° (5N HCl), [M]D +14.3° (glacial acetic acid). [a]D26 -8.8° (c = 5 in H2O); [a]D26 +18.3° (c = 2 in 2N HCl). On standing for 8 hrs at 26° the [a]D of the HCl soln decreases to nearly zero as the corresponding levorotatory-g-butyrolactone is formed.
Optical Rotation: [a]D26 -8.8° (c = 5 in H2O); [a]D26 +18.3° (c = 2 in 2N HCl)
Derivative Type: L-Homoserine g-lactone monohydrochloride
Properties: Prepd by refluxing L-homoserine with 2N HCl for 2 hrs, crystals, [a]D26 -27.0° (c = 5).
Optical Rotation: [a]D26 -27.0° (c = 5)
Derivative Type: D-Homoserine
Properties: Crystals, dec 203°. [a]D26 +8.8° (c = 5).
Optical Rotation: [a]D26 +8.8° (c = 5)
Derivative Type: DL-Homoserine
Properties: Crystals from dil ethanol, dec 186-187°.
产品链接: 672-15-1››