METHOD OF STORING TETRAZOLIUM COMPOUND, STABILIZER FOR USE THEREIN, AND TETRAZOLIUM COMPOUND REAGENT SOLUTION STORED BY THE METHOD

Title:

METHOD OF STORING TETRAZOLIUM COMPOUND, STABILIZER FOR USE THEREIN, AND TETRAZOLIUM COMPOUND REAGENT SOLUTION STORED BY THE METHOD

Document Type and Number:

WIPO Patent Application WO/2003/029229

Kind Code:

A1

Abstract:

A method of stably storing a tetrazolium compound. It comprises storing the tetrazolium compound in the presence of sodium azide. The proportion of the tetrazolium compound to the sodium azide, (A:B), is from 1:0.02 to 1:6.2. When the tetrazolium compound is stored in a solution state, the concentration of the sodium azide is 0.08 to 3.2 mmol&sol L and that of the tetrazolium compound is 0.5 to 8 mmol&sol L. The tetrazolium compound preferably is a 2−(4−iodophenyl)−3−(2,4−dinitrophenyl)−5−(2,4−disulfophenyl)−2H−tetrazolium salt.

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Inventors:

ISHIMARU KAORI (JP)
YONEHARA SATOSHI (JP)

Application Number:

PCT/JP2002/009889

Publication Date:

April 10, 2003

Filing Date:

September 25, 2002

Export Citation:

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Assignee:

ARKRAY INC (JP)
ISHIMARU KAORI (JP)
YONEHARA SATOSHI (JP)

International Classes:

C07B63/04; C07D257/04; (IPC1-7): C07D257/04

Foreign References:

US4748115A	1988-05-31
JPS61241743A	1986-10-28

Other References: