EP 0655064 A1 19950531 - CHROMOGENIC REAGENTS.
Title (en)
CHROMOGENIC REAGENTS.
Title (de)
CHROMOGENE REAGENZIEN.
Title (fr)
REACTIFS CHROMOGENES.
Publication
Application
Priority
- GB 9301713 W 19930812
- GB 9217149 A 19920813
Abstract (en)
[origin: WO9404539A1] Chromogenic reagents, and more particularly compounds which function as selective cation-sensitive dyes are disclosed. The compounds are of formula (II) wherein X is a chromophore; Y and Z are -CH2(CHR-O-CHR)nCH2- in which n is an integer from 1 - 10 (which may be different for Y and Z) and each R independently is hydrogen or a substituent for hydrogen or when n is an integer from 2-10 at least one -CHR-CHR- group may additionally represent a substituted or unsubstituted arylene group; W indicates one or more optional substituents on the benzene ring; and A is a group imparting acidity to the molecule. Preferred compounds are those in which n = 2 for Z and n = 1 or 2 for Y; X is 4-nitrophenylazophenol and R is hydrogen or additionally when n is 2 at least one -CHR-CHR- group may represent a substituted or unsubstituted arylene group.
IPC 1-7
IPC 8 full level
C07D 498/08 (2006.01); C09B 29/26 (2006.01); C09B 56/00 (2006.01); C09B 57/10 (2006.01); G01N 21/77 (2006.01); G01N 31/22 (2006.01)
CPC (source: EP)
C07D 498/08 (2013.01); C09B 29/26 (2013.01); G01N 31/22 (2013.01)
Citation (search report)
See references of WO 9404539A1
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 9404539 A1 19940303; CA 2142117 A1 19940303; EP 0655064 A1 19950531; GB 9217149 D0 19920923; JP H09509395 A 19970922
DOCDB simple family (application)
GB 9301713 W 19930812; CA 2142117 A 19930812; EP 93918011 A 19930812; GB 9217149 A 19920813; JP 50601094 A 19930812