Radical lithium phthalocyanine crystals, their preparation proce

Details Radical lithium phthalocyanine crystals, their preparation proce Radical lithium phthalocyanine crystals, their preparation proce

1991-06-28

1992-05-12

Raymond, Richard L.

Drug, bio-affecting and body treating compositions

In vivo diagnosis or in vivo testing

Magnetic imaging agent

204 58QM, 204 59QM, 514410, 540139, A61K 3140, A61K 4900, C07D48722

Patent

active

051125978

ABSTRACT:
The invention relates to novel radical lithium phthalocyanine crystals, their preparation process and their use for in vivo determination of molecular oxygen.
These radical lithium phthalocyanine crystals comply with the formula: ##STR1## in which R.sup.1 and R.sup.2, which can be the same or different, represent a deuterium or hydrogen atom having a tetragonal crystalline structure belonging to the space group P4/mcc.
They are usable for in vivo oxygen determination by EPR spectrometry.

REFERENCES:
patent: 4996311 (1991-02-01), Moussavi et al.

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