Title:
BLUE DYE SYNTHESIZED FROM ESERINE AND PRODUCTION THEREOF
Document Type and Number:
Japanese Patent JP2627588
Kind Code:
B2
Abstract:
PURPOSE: To produce a blue dye from eserine through a simple treatment.
CONSTITUTION: The title dye is obtained by reacting eserine or a salt thereof with an amino acid in the presence of oxygen in a medium having a pH of 10 or higher. This dye has the molecular formula C26H32N5O; shows, in solution in methanol, absorption maxima in the ultraviolet and visible regions at 614nm (63,400), 308nm (6,400), 248nm (23,500), and 234nm (22,700); shows absorption maxima in the infrared region at 3,410, 1,580, 1,420, and 1,295cm-1; has an Rf value of 0.55 (determined with silica gel and a 6:4:0.1 mixture of chloroform, methanol, and acetic acid); and is soluble in methanol, ethyl acetate, chloroform, acetone, and water but insoluble in hexane.
Inventors:
Masanori Yamamoto
Nomura Yukihiro
Nobuaki Tsuge
Shinsuke Imai
Shiho Sasaki
Mikiko Mizogami
Nomura Yukihiro
Nobuaki Tsuge
Shinsuke Imai
Shiho Sasaki
Mikiko Mizogami
Application Number:
JP25393591A
Publication Date:
July 09, 1997
Filing Date:
October 01, 1991
Export Citation:
Assignee:
House Foods Co., Ltd.
International Classes:
C09B59/00; (IPC1-7): C09B59/00
Attorney, Agent or Firm:
Minoru Nakamura (8 outside)