Cervinomycin A2

Article number:

5600011

CAS-No.:

82658-22-8

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Chromomycin A3

Article number:

5501063

CAS-No.:

7059-24-7

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Chrysomycin A

Article number:

5501131

CAS-No.:

82196-88-1

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Chrysomycin B

Article number:

5501137

CAS-No.:

83852-56-6

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Concanamycin C

Article number:

5500381

CAS-No.:

81552-34-3

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Cordycepin

Article number:

5600014

CAS-No.:

73-03-0

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Dalbavancin

Article number:

5500365

CAS-No.:

171500-79-1

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Dalbavancin HCl

Article number:

5500620

CAS-No.:

171500-79-1

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Antibiotics

Selman Waksman defined the term antibiotic in 1942 to describe any substance produced by a microorganism that is antagonistic to the growth of other microorganisms in high dilution. While this definition was coined it meant in the same way that substances that kill bacteria, but are not produced by microorganisms were excluded. Not included were synthetic antibacterial compounds such as the sulfonamides, too. Thanks to proceedings in medicinal chemistry, most of today's antibacterials chemically are semisynthetic modifications of various natural compounds.These include, for example, the beta-lactam antibacterials, which include the penicillins (produced by fungi in the genus Penicillium), the cephalosporins, and the carbapenems In general many antibacterial compounds are relatively small molecules with a molecular weight of less than 2000 atomic mass units.

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