6-aminopenicillanic acid


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6-aminopenicillanic acid

/6-ami·no·pen·i·cil·lan·ic ac·id/ (ah-me″no-pen″ĭ-sil-an´ik) the active nucleus common to all penicillins; it may be substituted at the 6-amino position to form the semisynthetic penicillins.