12-06327. Monardein Chloride [Archived]

Nomenclature

CAS number: 1329-77-7
Monardaein chloride; pelargonidin-3-(6-p-coumaroyl)glucosido-5-glucoside chloride.
C36H37ClO17; mol wt 777.12.
C 55.64%, H 4.80%, Cl 4.56%, O 35.00%.

Description and references

Coloring matter of Monarda didyma L. (“golden balm”), Labiatae: Karrer, Widmer, Helv. Chim. Acta 10, 67 (1927); Karrer, ibid. 11, 837 (1928). Structure: Birkofer et al., Z. Naturforsch. 20b, 424 (1965).

Chemical structure

Properties

Red powder. [α]D -374.5° (0.1% HCl). Absorption max (methanolic HCl): 286, 313, 507 nm. Sol in water and methanol. The aq soln is scarlet in color, changed to violet by Na2CO3 and to light brown by excess NaOH.

Status

This monograph has been retired and is no longer subject to revision or update.