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4-(3-Butyl-1-imidazolio)-1-butanesulphonate, ≥98% Cas 439937-61-8 is an ionic liquid.
BI-0345 (OTTO) 4-(3-Butyl-1-imidazolio)-1-butanesulphonate, ≥98% Cas 439937-61-8 - used in specialty chemical synthesis.