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  2. Sympathomimetic drug - Wikipedia

    en.wikipedia.org/wiki/Sympathomimetic_drug

    A primary or secondary aliphatic amine separated by 2 carbons from a substituted benzene ring is minimally required for high agonist activity. The pKa of the amine is approximately 8.5-10. [2] The presence of hydroxy group in the benzene ring at 3rd and 4th position shows maximum alpha- and beta-adrenergic activity. [medical citation needed]

  3. Aromatic amino acid - Wikipedia

    en.wikipedia.org/wiki/Aromatic_amino_acid

    Aromatic amino acids often serve as the precursors to important biochemicals. Histidine is the precursor to histamine . Tryptophan is the precursor to 5-hydroxytryptophan and then serotonin , tryptamine , auxin, kynurenines , and melatonin .

  4. Aromatic amine - Wikipedia

    en.wikipedia.org/wiki/Aromatic_amine

    In organic chemistry, an aromatic amine is an organic compound consisting of an aromatic ring attached to an amine. It is a broad class of compounds that encompasses anilines , but also many more complex aromatic rings and many amine substituents beyond NH 2 .

  5. Amino acid - Wikipedia

    en.wikipedia.org/wiki/Amino_acid

    In proteinogenic amino acids, it bears the amine and the R group or side chain specific to each amino acid, as well as a hydrogen atom. With the exception of glycine, for which the side chain is also a hydrogen atom, the α–carbon is stereogenic. All chiral proteogenic amino acids have the L configuration.

  6. What is Hypertension? Everything You Need to Know - AOL

    www.aol.com/hypertension-everything-know...

    The second number — the bottom number — is your diastolic blood pressure. This is the pressure of your blood against your artery walls back toward the heart, in between heartbeats. You have ...

  7. Triethylenetetramine - Wikipedia

    en.wikipedia.org/wiki/Triethylenetetramine

    The reactivity and uses of TETA are similar to those for the related polyamines ethylenediamine and diethylenetriamine. It is primarily used as a crosslinker ("hardener") in epoxy curing. [ 4 ] [ 5 ] TETA, like other aliphatic amines, react quicker and at lower temperatures than aromatic amines due to less negative steric effects since the ...

  8. Amine - Wikipedia

    en.wikipedia.org/wiki/Amine

    Amine. In chemistry, amines (/ ə ˈ m iː n, ˈ æ m iː n /, [1] [2] UK also / ˈ eɪ m iː n / [3]) are compounds and functional groups that contain a basic nitrogen atom with a lone pair.Formally, amines are derivatives of ammonia (NH 3), wherein one or more hydrogen atoms have been replaced by a substituent such as an alkyl or aryl group [4] (these may respectively be called alkylamines ...

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!