polar aprotic solvent
A solvent with a comparatively high relative permittivity (or dielectric constant), greater than ca. 15, and a sizable permanent dipole moment, that cannot donate suitably labile hydrogen atoms to form strong hydrogen bonds.
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EC 3.4.19.3 (pyroglutamyl-peptidase I) inhibitor
An EC 3.4.19.* (omega-peptidase) inhibitor that interferes with the action of pyroglutamyl-peptidase I (EC 3.4.19.3).
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polar aprotic solvent
A solvent with a comparatively high relative permittivity (or dielectric constant), greater than ca. 15, and a sizable permanent dipole moment, that cannot donate suitably labile hydrogen atoms to form strong hydrogen bonds.
fragrance
A substance, extract, or preparation for diffusing or imparting an agreeable or attractive smell.
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