enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Derivative (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Derivative_(chemistry)

    In chemistry, a derivative is a compound that is derived from a similar compound by a chemical reaction.. In the past, derivative also meant a compound that can be imagined to arise from another compound, if one atom or group of atoms is replaced with another atom or group of atoms, [1] but modern chemical language now uses the term structural analog for this meaning, thus eliminating ambiguity.

  3. Derivatization - Wikipedia

    en.wikipedia.org/wiki/Derivatization

    Derivatization is a technique used in chemistry which converts a chemical compound into a product (the reaction's derivate) of similar chemical structure, called a derivative. Generally, a specific functional group of the compound participates in the derivatization reaction and transforms the educt to a derivate of deviating reactivity ...

  4. Chiral derivatizing agent - Wikipedia

    en.wikipedia.org/wiki/Chiral_derivatizing_agent

    (R)-α-methoxy-α-(trifluoromethyl)- phenylacetic acid (Mosher's acid). In analytical chemistry, a chiral derivatizing agent (CDA), also known as a chiral resolving reagent, is a derivatization reagent that is a chiral auxiliary used to convert a mixture of enantiomers into diastereomers in order to analyze the quantities of each enantiomer present and determine the optical purity of a sample.

  5. Product rule - Wikipedia

    en.wikipedia.org/wiki/Product_rule

    This, combined with the sum rule for derivatives, shows that differentiation is linear. The rule for integration by parts is derived from the product rule, as is (a weak version of) the quotient rule. (It is a "weak" version in that it does not prove that the quotient is differentiable but only says what its derivative is if it is differentiable.)

  6. Hindered amine light stabilizers - Wikipedia

    en.wikipedia.org/wiki/Hindered_amine_light...

    Hindered amine light stabilizers (HALS) are chemical compounds containing an amine functional group that are used as stabilizers in plastics and polymers. [1] These compounds are typically derivatives of tetramethylpiperidine and are primarily used to protect the polymers from the effects of photo-oxidation; as opposed to other forms of polymer degradation such as ozonolysis.

  7. Benzotriazole - Wikipedia

    en.wikipedia.org/wiki/Benzotriazole

    Benzotriazole derivatives have chemical and biological properties that are versatile in the pharmaceutical industry. Benzotriazole derivatives act as agonists for many proteins. For instance, vorozole and alizapride have useful inhibitory properties against different proteins.

  8. Derivative investments: What they are and how they work - AOL

    www.aol.com/finance/derivative-investments...

    Here’s what derivatives are, how they work and their pros and cons. What is a derivative? The word derivative sounds fancy and perhaps a little intimidating. But the key thing to know about ...

  9. Chemical potential - Wikipedia

    en.wikipedia.org/wiki/Chemical_potential

    Thus, it is the partial derivative of the free energy with respect to the amount of the species, all other species' concentrations in the mixture remaining constant. When both temperature and pressure are held constant, and the number of particles is expressed in moles, the chemical potential is the partial molar Gibbs free energy .