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It also maintains List I of chemicals and List II of chemicals, which contain chemicals that are used to manufacture the controlled substances/illicit drugs. The list is designated within the Controlled Substances Act [ 1 ] but can be modified by the U.S. Attorney General as illegal manufacturing practices change.
The numbers are included in the name to avoid ambiguity about the position of the groups, and "tri" indicates that there are three identical methyl groups. If one of the methyl groups attached to the third carbon atom were instead an ethyl group, then the name would be 3-ethyl-2,3-dimethylpentane.
The Arrhenius equation was used in a study to calculate activation energies for the chlorination of four parent parabens (methyl-, ethyl-, propyl-, and butylparaben) and was found to range from 36–47 kJ/mol. [21] In another study, tap water at 20 °C (68 °F) containing 50–200 μM free chlorine was spiked with 0.5 μM propylparaben and the ...
An ester of carboxylic acid.R stands for any group (organic or inorganic) and R′ stands for organyl group.. In chemistry, an ester is a compound derived from an acid (organic or inorganic) in which the hydrogen atom (H) of at least one acidic hydroxyl group (−OH) of that acid is replaced by an organyl group (−R).
Many drugs have more than one name and, therefore, the same drug may be listed more than once. Brand names and generic names are differentiated by capitalizing brand names. See also the list of the top 100 bestselling branded drugs, ranked by sales. Abbreviations are used in the list as follows: INN = International Nonproprietary Name
Methyl ethyl ketone 5: Pent-Amyl alcohol: Valeraldehyde: Valeric acid •Methyl propyl ketone •Diethyl ketone 6: Hex-Caproyl alcohol: Caproaldehyde: Caproic acid •Butyl methyl ketone •Ethyl propyl ketone 7: Hept-Enanthyl alcohol: Enanthaldehyde: Enanthoic acid •Methyl pentyl ketone •Butyl ethyl ketone •Dipropyl ketone 8: Oct-Capryl ...
Butylparaben, or butyl p-hydroxybenzoate, is an organic compound with the formula C 4 H 9 O 2 CC 6 H 4 OH. [1] It is a white solid that is soluble in organic solvents. It has proven to be a highly successful antimicrobial preservative in cosmetics. [2] It is also used in medication suspensions, and as a flavoring additive in food.
The tables below contain a sample list of benzodiazepines and benzodiazepine analogs that are commonly prescribed, with their basic pharmacological characteristics, such as half-life and equivalent doses to other benzodiazepines, also listed, along with their trade names and primary uses.