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1 day ago · Barbiturate. Barbituric acid, the parent structure of all barbiturates. Barbiturates [a] are a class of depressant drugs that are chemically derived from barbituric acid. [2] They are effective when used medically as anxiolytics, hypnotics, and anticonvulsants, but have physical and psychological addiction potential as well as overdose ...
1 day ago · The iodine value is the mass of iodine in grams that is consumed by 100 grams of a chemical substance typically fats or oils. Iodine numbers are often used to determine the amount of unsaturation in fatty acids. This unsaturation is in the form of double bonds, which react with iodine compounds.
- lustrous metallic gray solid, black/violet liquid, violet gas
- group 17 (halogens)
- 53
1 day ago · Asia ( / ˈeɪʒə / ⓘ AY-zhə, UK also / ˈeɪʃə / AY-shə) is the largest continent [note 1] [10] [11] in the world by both land area and population. [11] It covers an area of more than 44 million square kilometers, [note 2] about 30% of Earth's total land area and 8% of Earth's total surface area.
1 day ago · Dextromethorphan is the dextrorotatory enantiomer of levomethorphan, which is the methyl ether of levorphanol, both opioid analgesics. It is named according to IUPAC rules as (+)-3-methoxy-17-methyl-9α,13α,14α- morphinan. As its pure form, dextromethorphan occurs as an odorless, opalescent white powder.
- C₁₈H₂₅NO
- Robitussin, Delsym, others
- AU: A
1 day ago · Alkaline earth metal. The alkaline earth metals are six chemical elements in group 2 of the periodic table. They are beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra). [1] The elements have very similar properties: they are all shiny, silvery-white, somewhat reactive metals at standard temperature and ...
- IIA
- IIA
- beryllium group
- alkaline earth metals
1 day ago · Drospirenone, also known as 1,2-dihydrospirorenone or as 17β-hydroxy-6β,7β:15β,16β-dimethylene-3-oxo-17α-pregn-4-ene-21-carboxylic acid, γ-lactone, is a synthetic steroidal 17α-spirolactone, or more simply a spirolactone. [9] [95] It is an analogue of other spirolactones like spironolactone, canrenone, and spirorenone.