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Antibiotics:
A chemical substance generated by or derived from living cells that is able of inhibiting the life procedures or even destroying micro-organism is known as Antibiotics.
The first antibiotic, exposed by Alexander Fleming in the year 1929 from the mould penicillium notatum, was penicillin. In the year 1938, Howard Florey and Ernst Chain isolated penicillin in pure form and proved its efficiency as an antibiotic. It was in progress into medical practice in the year 1941. Penicillin is utilized beside large number of infections caused by several cocci, gram affirmative bacteria, and so on. It is an effectual drug for abcesses, bronchitis, pneumonia and sore throat. Naturally happpening penicillins have been isolated all of these compeises the empirical formula, C9H11O4SN2R
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