8409. Scopolin

Nomenclature

CAS number: 531-44-2
7-(β-d-Glucopyranosyloxy)-6-methoxy-2H-1-benzopyran-2-one.
C16H18O9; mol wt 354.31.
C 54.24%, H 5.12%, O 40.64%.

Description and references

Mono-β-glucopyranoside of scopoletin. From root of Scopolia japonica Maxim., S. carniolica Jacq., Solanaceae and Nerium odorum Sol., Apocynaceae. Isoln: Eykman, Ber. 17 III, 442 (1884); Ritter et al., Helv. Chim. Acta 36, 434 (1953). Synthesis: Merz, Arch. Pharm. 270, 476 (1932). Possible identity with murrayin: Bose, Mookerjee, J. Indian Chem. Soc. 14, 489 (1937). Chromatography, and spectrum of murrayin: Chakraborty, Bose, ibid. 33, 905 (1956); Chakraborty, Chakraborty, Trans. Bose Res. Inst. (Calcutta) 24 (1), 15 (1961), C.A. 55, 24228c (1961).

Properties

Needles. mp 218°. Soluble in water, alcohol. Practically insol in chloroform, ether.

Derivative

Tetraacetate.
C24H26O13; mol wt 522.46.
C 55.17%, H 5.02%, O 39.81%.

Properties

Polymorphous crystals, prisms, mp 166° or flat plates, mp 184-185°.