C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
150/1, 150/26, 2
C07D 498/08 (2006.01) G01N 33/84 (2006.01) G01N 33/96 (2006.01)
Patent
CA 1290750
ABSTRACT OF THE DISCLOSURE The present invention resides in the discovery of a new class of compounds defined herein as "chromogenic cryptahemispherands" useful for the measurement of ions, in particular, ions in aqueous solution, which have the structure Image wherein: R, same or different, is hydrogen, lower alkyl, lower alkylidene, lower alkenyl, allyl or aryl; R', same or different, is lower alkyl, lower alkylidene, lower alkenyl, allyl or aryl; R", same sr different, is hydrogen, lower alkyl, lower alkylidene, lower alkenyl, allyl or aryl; Q is a chromogenic moiety capable of providing the appearance of or change in color, or which is otherwise capable of providing a detectable response in the presence of a particular cation; a, b, m and n, same or different, are 1 to about 3; and x, y, same or different, are 1 to about 4. A test device utilizing one or more of the compounds for performing such measurements is also disclosed.
560875
Chapoteau Eddy
Cram Donald J.
Czech Bronislaw P.
Gebauer Carl R.
Helgeson Roger C.
Macrae & Co.
Technicon Instruments Corporation
The Regents Of The University Of California
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