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Methyl-2-methyl butyrate is CH3-CH2-CH(CH3)-COOCH3, it may be prepared by reacting 2-methyl butyric acid with methanol in presence of sulphuric acid.
Methyl butyrate smell like apples.
Potassium butyrate is used in food additives; but the efficacy is not confirmed scientifically, a hoax is possible.
penis
it is organic