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Title:
NEW COUPLER COMPOUND
Document Type and Number:
Japanese Patent JPH0912915
Kind Code:
A
Abstract:

PURPOSE: To obtain a new coupler compound by oxidatively condensing a hydrogen donor, coloring in a higher wavelength and in absorbance than 4- aminopyrine, having high absorbance, suitable for microanalysis of hydrogen peroxide useful in clinical chemical test, etc.

CONSTITUTION: This new coupler compound comprises and aminodiphenyl-based compound of formula I (R1 to R9 are each an alkyl, sulfo group, an alkoxy, a halogen, carboxyl, etc.; R2 and R5 may be bonded as they are or through a methylene chain; R10 is a 1-5C alkyl which may contain sulfo group, carboxyl group, hydroxyl group, etc.). A compound of formula II among the compound of formula I is treated with a compound of formula III as a hydrogen donor in the presence of a peroxidase by hydrogen peroxide to form an oxidative condensate of formula IV and colored. The colored substance has the maximum absorption wavelength in the vicinity of 750nm.


Inventors:
MIZOGUCHI MAKOTO
Application Number:
JP17958795A
Publication Date:
January 14, 1997
Filing Date:
June 23, 1995
Export Citation:
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Assignee:
DOJIN KAGAKU KENKYUSHO KK
International Classes:
G01N31/00; C07C211/54; C07C229/58; C07C239/08; C07C271/28; C07C307/02; C07C309/24; C07C309/29; C07D209/88; C07D219/08; C09B57/00; C12Q1/28; G01N31/22; G01N33/52; (IPC1-7): C09B57/00; C07C211/54; C07C229/58; C07C239/08; C07C271/28; C07C307/02; C07C309/24; C07C309/29; C07D209/88; C07D219/08; G01N31/00; G01N31/22; G01N33/52
Attorney, Agent or Firm:
Keiichiro Atsuta