Chemical structure of a benzene ring published in a textbook by August Kekulee (1829-1896) in 1867. It is believed to be the earliest depiction of this organic compound. Kekulee was a German chemist who established the foundation for the structural theory in organic chemistry. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Science History Institute |
Bildgröße: | 2916 px × 3361 px |
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