Asparagine, is an α-amino acid that is used in the biosynthesis of proteins. It contains an α-amino group, an α-carboxylic acid group, and a side chain carboxamide, classifying it as a polar, aliphatic amino acid. It is non-essential in humans, meaning the body can synthesize it. It is encoded by the codons AAU and AAC.
Johann Wolfgang Döbereiner was a German chemist who is best known for work that foreshadowed the periodic law for the chemical elements, and for inventing the first lighter, which was known as the Döbereiner's lamp. He became a professor of chemistry and pharmacy at the University of Jena.
Johannes Friedrich Miescher was a Swiss physician and biologist. He was the first scientist to isolate nucleic acid. He also identified protamine and made a number of other discoveries.
Skatole or 3-methylindole is an organic compound belonging to the indole family. It occurs naturally in the feces of mammals and birds and is the primary contributor to fecal odor. In low concentrations, it has a flowery smell and is found in several flowers and essential oils, including those of orange blossoms, jasmine, and Ziziphus mauritiana.
Annalen der Physik is one of the oldest scientific journals on physics and has been published since 1799. The journal publishes original, peer-reviewed papers in the areas of experimental, theoretical, applied, and mathematical physics and related areas. The current editor-in-chief is Stefan Hildebrandt. Prior to 2008, its ISO 4 abbreviation was Ann. Phys. (Leipzig), and after 2008 Ann. Phys. (Berl.).
Chloral, also known as trichloroacetaldehyde or trichloroethanal, is the organic compound with the formula Cl3CCHO. This aldehyde is a colourless oily liquid that is soluble in a wide range of solvents. It reacts with water to form chloral hydrate, a once widely used sedative and hypnotic substance.
Crotonic acid ((2E)-but-2-enoic acid) is a short-chain unsaturated carboxylic acid, described by the formula CH3CH=CHCO2H. It is called crotonic acid because it was erroneously thought to be a saponification product of croton oil. It crystallizes as colorless needles from hot water. The cis-isomer of crotonic acid is called isocrotonic acid. Crotonic acid is soluble in water and many organic solvents. Its odor is similar to butyric acid.
Mandelic acid is an aromatic alpha hydroxy acid with the molecular formula C6H5CH(OH)CO2H. It is a white crystalline solid that is soluble in water and polar organic solvents. It is a useful precursor to various drugs. The molecule is chiral. The racemic mixture is known as paramandelic acid.
Wilhelm Uhthoff was a German ophthalmologist born in Klein-Warin.
Picoline refers to any of three isomers of methylpyridine (CH3C5H4N). They are all colorless liquids with a characteristic smell similar to that of pyridine. They are miscible with water and most organic solvents.
Paul Erich Otto Wilhelm Knuth was a 19th-century German botanist and pollination ecologist.
Protoanemonin is a toxin found in all plants of the buttercup family (Ranunculaceae). When the plant is wounded or macerated, the unstable glucoside found in the plant, ranunculin, is enzymatically broken down into glucose and the toxic protoanemonin. It is the lactone of 4-hydroxy-2,4-pentadienoic acid.
Elisabeth Cruciger, a German writer, was the first female poet and hymnwriter of the Protestant Reformation and a friend of Martin Luther.
Petroselinic acid is a fatty acid that occurs naturally in several animal and vegetable fats and oils. It is a white powder and is commercially available. In chemical terms, petroselinic acid is classified as a monounsaturated omega-12 fatty acid, abbreviated with a lipid number of 18:1 cis-6. It has the formula CH3(CH2)10CH=CH(CH2)4COOH. The term "petroselinic" means related to, or derived from, oil of Petroselinum, parsley. Despite its name, petroselinic acid does not contain any selenium. Petroselinic acid is a positional isomer of oleic acid.
Titanium nitrate is the inorganic compound with formula Ti(NO3)4. It is a colorless, diamagnetic solid that sublimes readily. It is an unusual example of a volatile binary transition metal nitrate. Ill defined species called titanium nitrate are produced upon dissolution of titanium or its oxides in nitric acid.
Andreas Herbst is a German historian. His career has been divided between authorship and museum work. He has written extensively on aspects of the German Democratic Republic and since 2001 has worked for the German Resistance Memorial Center in Berlin.
Margot Becke-Goehring was a Professor of Inorganic Chemistry at the University of Heidelberg and she was the first female rector of a university in West Germany - the Heidelberg University. She was also the director of the Gmelin Institute of Inorganic Chemistry of the Max Planck Society that edited the Gmelins Handbuch der anorganischen Chemie. She studied Chemistry in Halle (Saale) and Munich, and she finished her doctorate and habilitation at the University of Halle. For her research on the chemistry of main-group elements, she was awarded Alfred Stock Memorial Prize. One of her most notable contributions to inorganic chemistry was her work on the synthesis and structure of poly(sulfur nitride), which was later discovered to be the first non-metallic superconductor. For her success in editing the Gmelins Handbuch der anorganischen Chemie, she received the Gmelin-Beilstein memorial coin.
Aluminium sulfacetate is a mixture of aluminium salts dissolved in water with formula Al
2SO
4(CH
3CO
2)
4.
Das deutsche Schrifttum über den Völkerbund, 1917–1925, is a book edited by Prussian librarians Fritz Junkke and Hans Sveistrup in 1927; the work is a bibliographic collection of German-language publications on the activities of the League of Nations, that contains, both, monographs and journal articles - as well as some newspaper notes.
Caesium azide or cesium azide is an inorganic compound of caesium and azide with the formula CsN
3.
