Compositions of matter useful as pH indicators and related methods
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United States of America Patent
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Issued Date -
Oct 20, 2005
app pub date -
Apr 14, 2005
filing date -
Apr 14, 2004
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Abandoned
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Abstract
The present invention provides chemical compounds (compositions of matter) and methods useful for determining pH and/or pH change in an environment. Specific compounds of the invention include at least five fused molecular rings.
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