This word may not exist, just curious!
The 2,3-dihydro refers to the fact that at the 2 and 3 positions (the two nitrogens) hydrogens have been added (hydro is the prefix for hydrogen). Chemistry Stack Exchange is a question and answer site for scientists, academics, teachers, and students in the field of chemistry. The IUPAC nomenclature of organic chemistry uses the numerical prefixes derived from Greek, except for the prefix for 9 (as mentioned) and the prefixes from 1 to 4 (meth-, eth-, prop-, and but-), which are not derived from words for numbers. :)On the left is 5-amino-2,3-dihydrophthalazine-1,4-dione and on the right is the molecule which the name is based on, phthalazine. Anybody can ask a question
Phentermine is a nonchiral compound that can be used as an appetite suppressant yet doesn't act as a stimulant. By using our site, you acknowledge that you have read and understand our Chemistry Stack Exchange is a question and answer site for scientists, academics, teachers, and students in the field of chemistry. Stack Exchange network consists of 177 Q&A communities including
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The substituted xanthines are a good example of an isomer found in food and drugs. Short answer: they were invented to preserve names of organic substances that already were in use.
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Meaning of atomic positional parameters Fantastic, thank you!
an OH group is called a functional group, so in the case of the luminol the phthalazine would be called its...? Submit your article Opens in new window Information and templates for authors Search this journal.
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The systematic name of luminol is 5-amino-2,3-dihydrophthalazine-1,4-dione, and I get it all apart from the "dihydro" - any help? An isomer is a chemical species with the same number and types of atoms as another chemical species but with distinct properties because the atoms are arranged into different chemical structures.
On the left is 5-amino-2,3-dihydrophthalazine-1,4-dione and on the right is the molecule which the name is based on, phthalazine. Dip ole moment is measured in Debye units, which is equal to the distance between the charges multiplied by the charge (1 Debye eq uals \(3.34 \times 10^{-30}\; C\, m\)).
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Find issues by year (1999 - Present) 2020 - … When two electrical charges, of opposite sign and equal magnitude, are separated by a distance, an electric dipole is established. Also, for brownie points: is there a techincal name for the molecule that a molecule is based on - i.e.