substituent


Also found in: Dictionary, Medical, Wikipedia.

substituent

[səb′stich·ə·wənt]
(organic chemistry)
An atom or functional group substituted for another in a chemical structure.
References in periodicals archive ?
They are characterized by insolubility in water and by solubility in organic solvents that can be controlled by changing their substituents.
Considering the positive intrinsic birefringence of PTFEMA, we estimated that the contribution of the ester substituent, C-C[F.
David Rozzell, CEO of Catylix commented, "Pentafluoroethylator is the fastest, easiest way to add a pentafluoroethyl group and evaluate the benefits of the New Substituent of the Future.
2,6-diethyl-1,3,5,7-tetramethyl substituted BODIPY derivatives with methyl, propyl, pentyl and decyl substituents at the meso position have been reported (Nagi et al.
Table 2: Protonational chemical shift increments [DELTA][delta] of C([beta])H-C([alpha]) caused by a substituent group Substituent groups and [DELTA][delta] their position in [alpha] substituent group [CH.
RESULTS: PBDEs possessing two ortho-bromine substituents and lacking at least one para-bromine substituent (e.
An interesting feature of the tetrahydroisoquinoline alkaloids of peyote is the existence of a methylenedioxy substituent on the aromatic ring, in contrast to the three methoxy groups in mescaline.
In the search for new fluorogenic reagents with benzofurazan structure along with an additional reactivity-enhancing substituent to improve reactivity, we synthesized ammonium 5-bromo-7-fluorobenzo-2-oxa-1,3diazole-4-sulfonate (SBD-BF) and characterized this reagent by means of spectroscopic and analytical data.
As amines, HALS can be basic, depending on the nitrogen substituent in the molecule.
Norbloc 7966 benzotriazole uv stabilizer has a methacrylate ester substituent, which will copolymerize efficiently with various vinyl monomers.
3]) with respect to their hydrolyzable substituents; X is usually an alkoxy substituent, e.
Further tests were run to oxidize the substituent groups on the Pc without changing the entire structure of the Pc.