List of articles in "Chemical Substance" category - Page 1054

Spinel /ˈspɪnɛl/ is the magnesium aluminium member of the larger spinel group of minerals. It has the formula MgAl2O4. Balas ruby is an old name for a rose-tinted variety.

Sulfuric acid (alternative spelling sulphuric acid) is a highly corrosive strong mineral acid with the molecular formula H2SO4. It is a pungent-ethereal colorless to slightly yellow viscous liquid which is […]

Sodium laureth sulfate or sodium lauryl ether sulfate (SLES) is an anionic detergent and surfactant found in many personal care products (soaps shampoos toothpaste etc.). SLES is an inexpensive and […]

Serotonin /ˌsɛrəˈtoʊnɨn/ or 5-hydroxytryptamine (5-HT) is a monoamine neurotransmitter. Biochemically derived from tryptophan serotonin is primarily found in the gastrointestinal (GI) tract platelets and the central nervous system (CNS) of […]

Selenocysteine (abbreviated as Sec or U in older publications also as Se-Cys) is the 21st proteinogenic amino acid. It exists naturally in all kingdoms of life as a building block […]

Salicylic acid (from Latin salix willow tree from the bark of which the substance used to be obtained) is a monohydroxybenzoic acid a type of phenolic acid and a beta […]

Starch or amylum is a carbohydrate consisting of a large number of glucose units joined by glycosidic bonds. This polysaccharide is produced by most green plants as an energy store. […]

Radon difluoride (RnF2) is a compound of radon a noble gas. Radon reacts readily with fluorine to form a solid compound but this decomposes on attempted vaporization and its exact […]

Riboflavin also known as vitamin B2 and formerly as vitamin G is an easily absorbed colored micronutrient with a key role in maintaining health in humans and other animals. It […]

Quartz is the second most abundant mineral in the Earth’s continental crust after feldspar. It is made up of a continuous framework of SiO4 silicon–oxygen tetrahedra with each oxygen being […]