Properties: Needles from dil alc, mp 193°. [a]D20 +28° (alc). Very sparingly sol in water. Soly (g/100 ml of soln): carbon tetrachloride 0.5; petr ether 0.1; ethyl acetate 1.1; acetone 0.6; chloroform 17.0; ethanol 1.9; benzene 0.9; isopropanol 1.5. Soly (g/100 ml of solvent): propylene glycol 0.1; dioxane 3.1; benzyl alcohol 8.1. On refluxing with methyl alcohol yields the 17-isopregnenolone, mp 172-173°, [a]D20 -140.5° (alcohol).
Melting point: mp 193°; mp 172-173°
Optical Rotation: [a]D20 +28° (alc); [a]D20 -140.5° (alcohol)
Derivative Type: Acetate
Percent Composition: C 77.05%, H 9.56%, O 13.39%
Properties: Needles from alcohol, mp 149-151°. [a]D20 +22° (alcohol). Soly (g/100 ml of soln): carbon tetrachloride 5.0; petr ether 1.0; ethyl acetate 7.9; acetone 2.7; chloroform 55.0; ethanol 2.5; benzene 26.0; isopropanol 2.0. Soly (g/100 ml of solvent): propylene glycol 0.1; dioxane 20.2; benzyl alcohol 11.1; benzyl benzoate 9.1.
Melting point: mp 149-151°
Optical Rotation: [a]D20 +22° (alcohol)
Derivative Type: Methyl ether
CAS Registry Number: 511-26-2
Percent Composition: C 79.95%, H 10.37%, O 9.68%
Properties: Crystals from abs or dil methanol, mp 123.5°. [a]D18 +18° (c = 1.085 in chloroform).
Melting point: mp 123.5°
Optical Rotation: [a]D18 +18° (c = 1.085 in chloroform)
产品链接: 145-13-1››