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REACTIONS OF PYRIDINE-BASED QUATERNARY AMMONIUM SALTS WITH CHITOSAN AND THEIR BIOLOGICAL ACTIVITY
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PIRIDIN ASOSIDA OLINGA TO‘RTLAMCHI AMMONIY TUZLARINI XITOZAN BILAN REAKSIYALARI VA ULARNING BIOLOGIK FAOLLIGI (Uzbek) : 0
STUDY OF ALTERNATIVE CONDITIONS OF THE REACTION OF CHITOSAN WITH N-PHENYL-N,NDIETHYL,N-CARBOXYBENZYL AMMONIUM CHLORIDE
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XITOZANNI N-FENIL-N,N-DIETIl, N-KARBOKSIBENZIL AMMONIY XLORID BILAN REAKSIYALARINI MUQOBIL SHAROITLARINI O‘RGANISH (Uzbek) : 0
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