Pyridines

Pyridine is the basic heterocyclic compound of the azine kind.
Pyridine is derived from benzene through replacement of the CH group
by the N-atom. Pyridine and picolines are employed as bases,
scavengers, catalysts, as well as solvents for chemical reactions.

Chiral Compounds

Chiral molecules show left and right-handed nature in the sense
that the molecules may exist as mirror-image forms
that cannot be made to overlap by any amount of rotation.

Boronic Acids

Boronic acid is a stable and generally a non-toxic group
that is easily synthesized and, due to these features, can be used
in several synthetic reactions including metal-catalyzed processes
such as Suzuki–Miyaura reaction, acid catalysis, asymmetric synthesis
of amino acids, and hydroboration.

Heterocyclic Compounds

Heterocyclic compounds are frequently used in organic synthesis.
Many of the heterocyclic scaffolds have been identified
as a privileged structure in medicinal chemistry and are prevalent
in a variety of pharmacologically active synthetic and natural compounds.
Most chemical reaction design planning starts
from these commercially available heterocyclic building blocks.

Labeled Compounds

Stable isotopically labeled compounds are non-radioactive
chemical substances where one or more element
within a compound has been substituted for its stable isotope.
Common stable isotopes used in research
include 2H (Deuterium or D), 13C, 15N and 18O.

Fluorinated Compounds

Fluorine is the most electronegative of all the elements, and forms very strong bonds to carbon and most other elements.
Its small atomic radius enables replacement of one or more hydrogen atoms in an organic structure by fluorine with relatively little steric impact, but often with a profound influence on the stability, biological availability and activity of the resulting molecule.
Elemental fluorine is one of the most chemically reactive substances known, which, along with the high toxicity of both fluorine and hydrogen fluoride, and their incompatibility with common materials, including glass, necessitate highly specialized equipment and techniques for reactions in which they are involved.
Direct fluorination of a pre-existing organic structure with either F2 or HF may thus appear daunting to the non-specialist.

PEG Linkers

Polyethylene glycol is a biologically inert, non-immunogenic
chemical that confers greater water solubility to proteins,
labeling tags and crosslinkers with which it is incorporated
as constituent chemical group.
PEG linkers are widely used in pharmaceutical
and biotech R&D due to their aqueous solubility and non-immunogenicity.