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(2s-(2alpha,5alpha,6beta(R*)))-isomer monopotassium salt phenethicillin

(2S-(2alpha,5alpha,6beta(R*)))-isomer phenethicillin

(2S-(2alpha,5alpha,6beta(S*)))-isomer monopotassium salt phenethicillin

(2S-(2alpha,5alpha,6beta))-isomer monosodium salt phenethicillin

(2S-(2alpha,5alpha,6beta))-isomer phenethicillin

(2S-(2alpha,5alpha,6beta,(S*)))-isomer phenethicillin

3,3-dimethyl-7-oxo-6-(2-phenoxypropionamido)-
4-thia-1-azabicyclo(3.2.0)heptane-
2-carboxylate

Broxil

Chemipen

Maxipen

Optipen

Pensig

phenoxyethyl penicillin

potassium phenethicillin

Syncillin

Synthepen

シンセペン