Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1991-06-19
1993-02-09
Ford, John M.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
427151, C07D31188
Patent
active
051854538
ABSTRACT:
Disclosed are novel crystal of the fluoran compound represented by the formula ##STR1## , characterized by a specific X-ray diffraction diagram; preparation process thereof; and recording materials comprising the crystal.
REFERENCES:
patent: 5087706 (1992-02-01), Otsuji et al.
Chemical Abstracts, vol. 103, No. 12, Sep. 1985; Abstract No. 89069v and JP-A-6047066.
Hasegawa Kiyoharu
Kikkawa Kazuyoshi
Nakatsuka Masakatsu
Otsuji Atsuo
Yamaguchi Akihiro
Ford John M.
Mitsui Toatsu Chemicals Inc.
Venkat Jyothsna
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