Title: Syringin
CAS Registry Number: 118-34-3
CAS Name: (E)-4-(3-Hydroxy-1-propenyl)-2,6-dimethoxyphenyl-b-D-glucopyranoside
Additional Names: 4-(3-hydroxypropenyl)-2,6-dimethoxyphenyl-D-glucoside; syringoside; ligustrin; lilacin; methoxyconiferine
Molecular Formula: C17H24O9
Molecular Weight: 372.37
Percent Composition: C 54.83%, H 6.50%, O 38.67%
Literature References: First isolated by Meillet in 1841 from bark of Syringa vulgaris L. (lilac): Ann. 40, 319 (1841). Prepn: Pauly, Strassberger, Ber. 62, 2277 (1929); Freudenberg, Schraube, Ber. 88, 16 (1955). Isoln from lilac bark: Freudenberg et al., Ber. 84, 472 (1951); from various plants: Plouvier, Compt. Rend. 254,4196 (1962); from cambial sap of spruce: Freudenberg, Harkin, Phytochemistry 2, 189 (1963).
Derivative Type: Monohydrate
Properties: Crystals from water, mp 192°. [a]D20 -8.2° (c = 2.43 in chloroform), -17.25° (water). Slightly sol in cold water; sol in hot water, alc. Practically insol in ether.
Melting point: mp 192°
Optical Rotation: [a]D20 -8.2° (c = 2.43 in chloroform), -17.25° (water)
Syrosingopine T-2 Toxin Tabernanthine Tabun Tacalcitol

CAS number 118-34-3 YesY
PubChem 5316860
ChemSpider 4475831
Jmol-3D images Image 1
Molecular formula C17H24O9
Molar mass 372.37 g mol−1
Appearance White crystalline solid
Melting point 192 °C; 378 °F; 465 K ([1])
Solubility in water Slightly soluble[1]
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Infobox references

Syringin is a natural chemical compound first isolated from the bark of lilac (Syringa vulgaris) by Meillet in 1841.[1] It has since been found to be distributed widely throughout many types of plants. It is also called eleutheroside B, and is found in Eleutherococcus senticosus (Siberian ginseng). It is also found in dandelion coffee.

Chemically, it is the glucoside of sinapyl alcohol.