Patent JPS55379A successfully refreshed from Google Patents.
JPS55379A
Expired / Lapsed
JP
⏱️ 0.0 years remaining
Biss*2*44dinitrophenyl**methyllpyridinium compound*its manufacture and ph determinating agent containing it
Assignee: Roche Diagnostics GmbH
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Filing: 1979-05-16
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Granted: —
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Expires: 1999-05-16
Abstract
Abstract Bis-(2,4-dinitrophenyl)-methylpyridinium compounds useful as a pH indicator or for the detection of ammonia having the formula: <IMAGE> wherein one of R1 and R2 is a bis-(2,4-dinitrophenyl)-methyl radical and the other is a lower alkyl radical; R2 can also be hydrogen atom or trifluoromethyl; R3 and R4 are hydrogen or, together with the carbon atoms to which they are attached, represent a benzene ring; and X(-) is an appropriate acid anion or said compounds are betaines.
Inventors
- 👤 Roote Anzerumu
- 👤 Giyuutorain Buerunaa
- 👤 Ritaasudorufu Buarutaa
- 👤 Buerunaa Buorufugangu
Bibliographic Details
Application Number
—
Jurisdiction
JP
Data Source
google_patents
Last Synchronized
2026-11-02 20:12
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/06; C07D213/16; C07D213/20; C07D213/24; C07D215/00; C07D215/02; C07D215/04; C07D215/10; C07D217/00; C07D217/02; C07D217/10
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