Title: Monardein Chloride
CAS Registry Number: 1329-77-7
Additional Names: Monardaein chloride; pelargonidin-3-(6-p-coumaroyl)glucosido-5-glucoside chloride
Molecular Formula: C36H37ClO17
Molecular Weight: 777.12
Percent Composition: C 55.64%, H 4.80%, Cl 4.56%, O 35.00%
Literature 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).
Properties: Red powder. [a]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.
Optical Rotation: [a]D -374.5° (0.1% HCl)
Absorption maximum: Absorption max (methanolic HCl): 286, 313, 507 nm
Status: This monograph has been retired and is no longer subject to revision or update. |