Paul Karrer Chemist

Paul karrer

Paul Karrer (21 April 1889 – 18 June 1971) was a Swiss organic chemist best known for his research on vitamins. He and Walter Haworth won the Nobel Prize for Chemistry in 1937. Karrer was born in Moscow, Russia to Paul Karrer and Julie Lerch, both Swiss nationals. In 1892 Karrer's family returned to Switzerland where he was educated at Wildegg and at the grammar school in Lenzburg, Aarau, where he matriculated in 1908. He studied chemistry at the University of Zurich under Alfred Werner and after gaining his Ph.D. in 1911, he spent a further year as assistant in the Chemical Institute. He then took a post as chemist with Paul Ehrlich at the Georg Speyer Haus, Frankfurt-am-Main. In 1919 he became Professor of Chemistry and Director of the Chemical Institute. Karrer's early research concerned complex metal compounds but his most important work has concerned plant pigments, particularly the yellow carotenoids. He elucidated their chemical structure and showed that some of these substances are transformed in the body into vitamin A. His work led to the establishment of the correct constitutional formula for beta-carotene, the chief precursor of vitamin A;

Personal details

Date of birth
April 21st, 1889
Date of death
June 18th, 1971 at age of 82
Place of death
Zürich, Switzerland
Places lived
Moscow , Russia
pop. 11,979,529 (2013)


1. University of Zurich Colleges/University

The University of Zurich (UZH, German: Universität Zürich), located in the city of Zurich, is the largest university in Switzerland, with over 25,000 students. It was founded in 1833 from the existing colleges of theology, law, medicine and a new faculty of philosophy.

Type Public university
Rämistrasse 71, CH-8006 - Zürich, Canton of Zürich
2013. 14,943
2010. 13,116
2013. 10,772
2010. 8,418
Local tuition
2012. 720 SFr.
2011. 640 SFr.
Official web page
Wikipedia article

Institution social analysis

Notable alumni by career
Notable alumni by gender

People attended University of Zurich connected by profession and/or age

b. 1866., Chemist
b. 1906., Chemist
b. 1830., Chemist
b. 1924., Chemist
b. 1865., Chemist
b. 1890., Historian
b. 1884., Psychiatrist
b. 1885., Psychoanalyst

Written work

1.Textbook of Organic Chemistry

Editions Subjects Co-authors
1946. at New York City

Awards won

1937 Nobel Prize in Chemistry

Awarded for Presented by Discipline Award shared with
for his investigations on carotenoids
Royal Swedish Academy of Sciences

1922 Marcel Benoist Prize

Awarded for Presented by Discipline Award shared with
Marcel Benoist Foundation



Impact crater
Karrer is a lunar impact crater that is located in the southern hemisphere on the far side of the Moon. It lies to the northeast of the crater Minkowski, and south of Leavitt. The most notable feature of this crater is the dark-hued floor, created when the interior was resurfaced by lava flows that had a lower albedo than the surrounding terrain. The outer rim is nearly circular, but broken in the northeast by a smaller overlapping crater. The inner wall has the same albedo as the surrounding terrain, and marks the perimeter of the flooded floor. The rim is somewhat worn, particularly in the north next to the overlapping crater. On the floor is a lobate scarp that was formed as a result of contraction of the lava. The scarp extends southward across the middle of the crater, past the rim and onto the surrounding highlands.
Located on Planetographic feature
Impact crater


Check Paul Karrer on wikipedia.

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