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Marvin Reif

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Carl Graebe

Born 24 Feb 1841; died 19 Jan 1927 at age 85.German organic chemist who, assisted by Carl Liebermann, synthesized (1868) the orange-red dye alizarin, which in the textile industry quickly supplanted the natural source of the dye from the madder plant root. Alizarin (dihydroscyanthraquinone) was recognized by Graebe and Liebermann, as a derivative of anthracene, a hydrocarbon contained in coal-tar. Also in 1868, they elaborated a method for preparing it commercially from anthracene. Upon this, one of the early German dyestuff products, arose rapidly a great chemical industry. Graebe also introduced the chemical terms "ortho," "meta," and "para," well known to organic chemistry students, which indicate the position of groups attached to a benzene ring.

The owner of a drug store walk...

The owner of a drug store walks in to find a guy leaning heavily against a wall.
The owner asks the clerk, "What's with that guy over there by the wall?"
The clerk says, "Well, he came in here this morning to get something for his cough. I couldn't find the cough syrup, so I gave him an entire bottle of laxative."
The owner says, "You idiot! You can't treat a cough with a bottle of laxatives!"
The clerk says, "Of course, you can! Look at him; he's afraid to cough!"
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