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In enzymology, a phenol O-methyltransferase (EC 2.1.1.25) is an enzyme that catalyzes the chemical reaction. S-adenosyl-L-methionine + phenol S-adenosyl-L-homocysteine + anisole. Thus, the two substrates of this enzyme are S-adenosyl methionine and phenol, whereas its two products are S-adenosylhomocysteine and anisole.
The exam was conducted in a single stage that usually occurred on the first Sunday of May. [4] now AIMPT has cancelled due to the NEET examination. The examination consisted of one paper containing 180 objective type questions from Physics, Chemistry and Biology (Botany & Zoology), having 45 questions from each subject. The exam duration was 3 ...
Typically, the term is used to describe the larger and characteristic parts of organic molecules, and it should not be used to describe or name smaller functional groups [1] [2] of atoms that chemically react in similar ways in most molecules that contain them. [3] Occasionally, a moiety may contain smaller moieties and functional groups.
The skeletal formula of the antidepressant drug escitalopram, featuring skeletal representations of heteroatoms, a triple bond, phenyl groups and stereochemistry. The skeletal formula, line-angle formula, bond-line formula or shorthand formula of an organic compound is a type of molecular structural formula that serves as a shorthand representation of a molecule's bonding and some details of ...
Skeletal structural formula of Vitamin B 12. Many organic molecules are too complicated to be specified by a molecular formula. The structural formula of a chemical compound is a graphic representation of the molecular structure (determined by structural chemistry methods), showing how the atoms are connected to one another. [1]
In organic chemistry, a methyl group is an alkyl derived from methane, containing one carbon atom bonded to three hydrogen atoms, having chemical formula CH 3 (whereas normal methane has the formula CH 4). In formulas, the group is often abbreviated as Me. This hydrocarbon group occurs in many organic compounds. It is a very stable group in ...
This improper name persists, especially in elementary textbooks. In biology, the unit "%" is sometimes (incorrectly) used to denote mass concentration, also called mass/volume percentage. A solution with 1 g of solute dissolved in a final volume of 100 mL of solution would be labeled as "1%" or "1% m/v" (mass/volume). This is incorrect because ...
Bismuth subcarbonate (BiO) 2 CO 3, sometimes written Bi 2 O 2 (CO 3) is a chemical compound of bismuth containing both oxide and carbonate anions. Bismuth is in the +3 oxidation state. Bismuth subcarbonate occurs naturally as the mineral bismutite. Its structure [1] consists of Bi–O layers and CO 3 layers and is related to kettnerite, CaBi(CO ...