Arthur Eichengrün
Encyclopedia
Arthur Eichengrün was a German
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

 chemist, best known through a controversy about who invented aspirin
Aspirin
Aspirin , also known as acetylsalicylic acid , is a salicylate drug, often used as an analgesic to relieve minor aches and pains, as an antipyretic to reduce fever, and as an anti-inflammatory medication. It was discovered by Arthur Eichengrun, a chemist with the German company Bayer...

.

Life

Arthur Eichengrün was born in Aachen
Aachen
Aachen has historically been a spa town in North Rhine-Westphalia, Germany. Aachen was a favoured residence of Charlemagne, and the place of coronation of the Kings of Germany. Geographically, Aachen is the westernmost town of Germany, located along its borders with Belgium and the Netherlands, ...

 as the son of a Jewish cloth merchant and manufacturer. In 1885, he took up studies in chemistry
Chemistry
Chemistry is the science of matter, especially its chemical reactions, but also its composition, structure and properties. Chemistry is concerned with atoms and their interactions with other atoms, and particularly with the properties of chemical bonds....

 at the University of Aachen
RWTH Aachen
RWTH Aachen University is a research university located in Aachen, North Rhine-Westphalia, Germany with roughly 33,000 students enrolled in 101 study programs....

, later moved to Berlin
Berlin
Berlin is the capital city of Germany and is one of the 16 states of Germany. With a population of 3.45 million people, Berlin is Germany's largest city. It is the second most populous city proper and the seventh most populous urban area in the European Union...

, and finally to Erlangen
Erlangen
Erlangen is a Middle Franconian city in Bavaria, Germany. It is located at the confluence of the river Regnitz and its large tributary, the Untere Schwabach.Erlangen has more than 100,000 inhabitants....

, where he received a Doctoral degree in 1890.

In 1896, he joined Bayer
Bayer
Bayer AG is a chemical and pharmaceutical company founded in Barmen , Germany in 1863. It is headquartered in Leverkusen, North Rhine-Westphalia, Germany and well known for its original brand of aspirin.-History:...

, working in the pharmaceutical laboratory. In 1908, he quit Bayer and founded his own pharmaceutical factory, the Cellon-Werke in Berlin. His company was "Aryanized
Aryanization
Aryanization is a term coined during Nazism referring to the forced expulsion of so-called "non-Aryans", mainly Jews, from business life in Nazi Germany and the territories it controlled....

" by the Nazis
Nazism
Nazism, the common short form name of National Socialism was the ideology and practice of the Nazi Party and of Nazi Germany...

 in 1938.

In 1943, he was arrested and sentenced to four months in prison for having failed to include the word "Israel" in his company's name. In May 1944, he was arrested again on the same charge and deported to the concentration camp Theresienstadt, where he spent 14 months until the end of World War II
World War II
World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...

 in Europe.

After the liberation, he returned to Berlin, but moved to Bad Wiessee
Bad Wiessee
Bad Wiessee is a spa town on Lake Tegernsee, Bavaria, Germany. The name "Bad" means for "spa" or "baths", while "Wiessee" derives from "West See", meaning "western part of the lake"....

 in Bavaria
Bavaria
Bavaria, formally the Free State of Bavaria is a state of Germany, located in the southeast of Germany. With an area of , it is the largest state by area, forming almost 20% of the total land area of Germany...

 in 1948, where he died the following year at the age of 82.

Aspirin

Eichengrün has made his name through numerous inventions such as processes for synthesizing chemical compounds. He held 47 patents. Arguably, however, he is best known through the controversy around the question who invented Aspirin
Aspirin
Aspirin , also known as acetylsalicylic acid , is a salicylate drug, often used as an analgesic to relieve minor aches and pains, as an antipyretic to reduce fever, and as an anti-inflammatory medication. It was discovered by Arthur Eichengrun, a chemist with the German company Bayer...

.

The standard story credits Felix Hoffmann
Felix Hoffmann
Felix Hoffmann was a German chemist, credited for the first synthesized medically useful forms of heroin and aspirin, though some sources maintain that Arthur Eichengrün was the real creator of the latter. Hoffmann was born in Ludwigsburg and studied Chemistry in Munich...

, a young Bayer chemist, with the invention of Aspirin in 1897. Impure acetylsalicylic acid (ASA, the active compound of Aspirin) had been synthesized already in 1853 by French
France
The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...

 chemist Charles Frédéric Gerhardt
Charles Frédéric Gerhardt
Charles Frédéric Gerhardt was a French chemist.-Biography:He was born in Strasbourg, where he attended the gymnasium. He then studied at the Karlsruhe Institute of Technology, where Friedrich Walchner's lectures first attracted his interest to chemistry...

; the 1897 process developed at Bayer was the first to produce pure ASA that could be used for medical purposes.

In 1949, Arthur Eichengrün published a paper in which he claimed to have planned and directed the synthesis of Aspirin along with the synthesis of several related compounds. He also claimed to be responsible for Aspirin's initial surreptitious clinical testing. Finally, he claimed that Hoffmann's role was restricted to the initial lab synthesis using his (Eichengrün's) process and nothing more.

The Eichengrün version was ignored by historians and chemists until 1999, when Walter Sneader of the Department of Pharmaceutical Sciences at the University of Strathclyde
University of Strathclyde
The University of Strathclyde , Glasgow, Scotland, is Glasgow's second university by age, founded in 1796, and receiving its Royal Charter in 1964 as the UK's first technological university...

 in Glasgow
Glasgow
Glasgow is the largest city in Scotland and third most populous in the United Kingdom. The city is situated on the River Clyde in the country's west central lowlands...

 re-examined the case and came to the conclusion that indeed Eichengrün's account was convincing and correct and that Eichengrün deserved credit for the invention of Aspirin. Bayer denied this speculation in a press release, confirming that the invention of Aspirin was due to Hoffmann.

While Sneader's version has been widely reported, there is no evidence supporting his claim.

Protargol

In 1897, Protargol, a silver salt of a protein mixture, developed by Eichengrün at Bayer, was introduced as a new drug against gonorrhea
Gonorrhea
Gonorrhea is a common sexually transmitted infection caused by the bacterium Neisseria gonorrhoeae. The usual symptoms in men are burning with urination and penile discharge. Women, on the other hand, are asymptomatic half the time or have vaginal discharge and pelvic pain...

. Protargol stayed in use until sulfa drugs and then antibiotics became available in the 1940s.

External links

  • Sneader's paper in the British Medical Journal
    British Medical Journal
    BMJ is a partially open-access peer-reviewed medical journal. Originally called the British Medical Journal, the title was officially shortened to BMJ in 1988. The journal is published by the BMJ Group, a wholly owned subsidiary of the British Medical Association...

    .
  • Responses to Sneader's paper in the British Medical Journal
    British Medical Journal
    BMJ is a partially open-access peer-reviewed medical journal. Originally called the British Medical Journal, the title was officially shortened to BMJ in 1988. The journal is published by the BMJ Group, a wholly owned subsidiary of the British Medical Association...

    .
  • Bayer's press release (in German
    German language
    German is a West Germanic language, related to and classified alongside English and Dutch. With an estimated 90 – 98 million native speakers, German is one of the world's major languages and is the most widely-spoken first language in the European Union....

    ).
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