FIELD: chemistry.
SUBSTANCE: invention relates to a crystalline form of 2-ethyl-6-methyl-3-oxypyridine succinate which is stable during storage and a synthesis method thereof. Synthesis is carried out in water with molar ratio 2-ethyl-6-methyl-3-oxypyridine: succinic acid: water equal to (1:1.055-1.066:10-12) and the end product is extracted at temperature from 0 to +5°C.
EFFECT: stability of the obtained product during storage, absence of toxic impurities, method avoids use of toxic and inflammable organic solvents, which improves working conditions and prevents contamination of the environment and the working area.
7 cl, 21 ex, 9 dwg
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Authors
Dates
2012-06-20—Published
2011-04-06—Filed