Syringaldehyde
Structural Formula Vector Image
Title: Syringaldehyde
CAS Registry Number: 134-96-3
CAS Name: 4-Hydroxy-3,5-dimethoxybenzaldehyde
Additional Names: syringic aldehyde; 3,5-dimethoxy-4-hydroxybenzene carbonal; gallaldehyde 3,5-dimethyl ether
Molecular Formula: C9H10O4
Molecular Weight: 182.17
Percent Composition: C 59.34%, H 5.53%, O 35.13%
Literature References: Widely distributed in plants. Hydrolysis product of the naturally occurring glycosyringic aldehyde: Körner, Gazz. Chim. Ital. 18, 215 (1888). Prepn from heat-treated beechwood and lignin: Kratzl, Silbernagel, C.A. 50, 6040 (1956). Synthesis from pyrogallol 1,3-dimethyl ether: Pearl, J. Am. Chem. Soc. 70, 1746 (1948), cf. Graebe, Martz, Ber. 36, 1032 (1903); Allen, Leubner, Org. Synth. 31, 92 (1951); coll. vol. IV, 866 (1963).
Properties: Very pale yellow needles from petr ether, mp 113°. bp14 192-193°. uv max (dioxane): 305 nm. Very sparingly sol in water, petr ether. Sol in alcohol, ether, chloroform, hot benzene, glacial acetic acid. Forms yellow sodium and potassium salts.
Melting point: mp 113°
Boiling point: bp14 192-193°
Absorption maximum: uv max (dioxane): 305 nm

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