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Descriptor English:   Viologens 
Descriptor Spanish:   Viológenos 
Descriptor Portuguese:   Viologênios 
Tree Number:   D03.383.725.762.925
Definition English:   A group of dipyridinium chloride derivatives that are used as oxidation-reduction indicators. The general formula is 1,1'-di-R-4,4'-bipyridinium chloride, where R = methyl, ethyl, benzyl or, betaine. 
Indexing Annotation English:   oxidation-reduction indicators
History Note English:   91(75); was see under PYRIDINIUM COMPOUNDS 1975-90 
Allowable Qualifiers English:  
AD administration & dosage AE adverse effects
AG agonists AN analysis
AI antagonists & inhibitors BL blood
CF cerebrospinal fluid CS chemical synthesis
CH chemistry CL classification
CT contraindications DU diagnostic use
EC economics HI history
IM immunology IP isolation & purification
ME metabolism PK pharmacokinetics
PD pharmacology PO poisoning
RE radiation effects ST standards
SD supply & distribution TU therapeutic use
TO toxicity UR urine
Record Number:   15159 
Unique Identifier:   D014755 

Occurrence in VHL:
 

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