Properties: Needles, mp 210-212°. uv max: 284 nm (e 21000).
Melting point: mp 210-212°
Absorption maximum: uv max: 284 nm (e 21000)
Derivative Type: (+)-Form
CAS Registry Number: 3405-51-4
Properties: Prisms from chloroform + light petr, mp 210-212°. [a]D +149° (c = 0.41 in dioxane). uv max: 284 nm (e 21000). Reacts as dibasic acid, dec slowly in presence of alkali. Solubilities of erdin are closely similar to those of geodin except that it is only very slightly sol in chloroform.
Melting point: mp 210-212°
Optical Rotation: [a]D +149° (c = 0.41 in dioxane)
Absorption maximum: uv max: 284 nm (e 21000)
Derivative Type: (+)-Form methyl ester
CAS Registry Number: 427-63-4
Additional Names: Geodin
Percent Composition: C 51.15%, H 3.03%, Cl 17.76%, O 28.06%
Properties: Prisms from chloroform + ether, mp 228-231°. [a]D +140° (c = 0.8). uv max: 284 nm (e 19000). Practically insol in water, petr ether. Very sparingly sol in benzene, ether; somewhat more sol in alc, ethyl acetate; readily sol in chloroform, acetone, dioxane.
Melting point: mp 228-231°
Optical Rotation: [a]D +140° (c = 0.8)
Absorption maximum: uv max: 284 nm (e 19000)
Status: This monograph has been retired and is no longer subject to revision or update.
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