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1. a substitute; especially an atom, radical, or group substituted for another in a compound.
2. of or pertaining to such an atom, radical, or group.


A functional group that has replaced another moiety and molecular entity.

Patient discussion about substituent

Q. the substitue ointment for lasonil

A. the active material in it is heparinoid, and if i'm not mistaken there are 2 other creams that uses it. just ask the pharmacist, he is the most qualified to help you.

More discussions about substituent
References in periodicals archive ?
1a, there are two characteristic absorption peaks: C--F bonds at 1205 [cm.sup.-1] and 936 [cm.sup.-1]; C=C bonds at 1597 [cm.sup.-1], which show that the fluorine substituent groups and the vinyl groups have been successfully introduced into the structure of the SR-FVI.
Beyond alteration of substituent groups on the polymer chain, fillers are common additions to silicone formulations for the properties they impart, such as conductivity and radio opacity.
The difference of values between C16-Azo and C16-Azo-Me can be mainly assigned to the change of substituent groups linked to azobenzene segment in the molecular skeleton, which affected the assembly modes in the 3D stacking of organogels [22].
The salycilate uses both the carboxyl and hydroxyl substituent groups to for either a tridentate binding to adjacent Ti(IV) ions or a bidentate Ti-O binding together with a OH-O binding, due to the rotation out of the plane of the dye of the carboxyl group.
The data shown in Table 1 indicate that the change of functional headgroups and alkyl substituent groups can have a profound effect upon the gelation abilities of these studied compounds.
Most useful star copolymers are copolymers of isobutylene and paramethylstyrene containing from 0.5 to 20 mol% para-methylstyrene in which up to 60 mol% of the methyl substituent groups are bromine or chlorine atoms.
The inhibitory effects of these HAQs might be related with the type and number of substituent groups on the molecular structure, and the stability and solubility of the particular compound.
The clusters without substituent groups were found to have quite modest acidity, both systems staying above 300 kcal/mol.
As the conditions that favor higher degrees of substitution with the same amount of chemical reagent have been better identified, the number of substituent groups can be increased, providing better stability against cold, shock and shear.
For these compounds, interpreting the effect of substituent groups on scavenging ability is a complex task, given the number of substituents that simultaneously exert electron-withdrawing and electron-donating effects.
The difference of values between C18-Azo and C16-Azo with longer alkyl methylene chains can be mainly attributed to the change of length in substituent groups linked to azobenzene segment in the molecular skeleton, which affected the assembly modes in the 3D stacking of organogels [28].
In some of our latest ligands, we replace the nitrogen atom with oxygen, and then put various substituent groups on that.