Properties: Fine, solvated needles from alc. After drying, mp 310°. [a]D20 +83.3° (c = 0.6 in chloroform). pK 2.52. Insol in water. Sol in 65 parts ether, 106 parts 95% alcohol, 35 parts boiling 95% alcohol, 118 parts chloroform, 180 parts acetone, 235 parts methanol.
Melting point: mp 310°
pKa: pK 2.52
Optical Rotation: [a]D20 +83.3° (c = 0.6 in chloroform)
Derivative Type: Acetate
Percent Composition: C 77.06%, H 10.10%, O 12.83%
Properties: Needles from methanol, mp 268°. [a]D17 +74.5° (c = 0.6 in CHCl3).
Melting point: mp 268°
Optical Rotation: [a]D17 +74.5° (c = 0.6 in CHCl3)
Derivative Type: Methyl ester
Percent Composition: C 79.10%, H 10.71%, O 10.20%
Properties: mp 201°. [a]D20 +75° (c = 0.6 in CHCl3).
Melting point: mp 201°
Optical Rotation: [a]D20 +75° (c = 0.6 in CHCl3)
Derivative Type: Acetate of methyl ester
Percent Composition: C 77.30%, H 10.22%, O 12.48%
Properties: Needles from alcohol, mp 223°. [a]D20 +70° (c = 0.6 in CHCl3).
Melting point: mp 223°
Optical Rotation: [a]D20 +70° (c = 0.6 in CHCl3)
产品链接: 508-02-1››