unsubstituted
71bilin, biline — The chain of four pyrrole residues resulting from the cleavage of one bond of one of the four methylidene residues of the porphin part of a porphyrin; specifically, the unsubstituted tetrapyrrole; bilirubin and biliverdin are bilins …
72dye — A stain or coloring matter; a compound consisting of chromophore and auxochrome groups attached to one or more benzene rings, its color being due to the chromophore and its dyeing affinities to the auxochrome. Dyes are used for intravital… …
73porphin, porphine — The unsubstituted cyclic tetrapyrrole nucleus that is the basis of the porphyrins. SEE ALSO: porphyrins. Cf.:chlorin, phorbin, corrin. SYN: porphyrin …
74steroids — A large family of chemical substances, comprising many hormones, body constituents, and drugs, each containing the tetracyclic cyclopenta[a]phenanthrene skeleton. Stereoisomerism among s. is not only common but of critical biologic significance.… …
75succinimide — Chemical class of drugs from which the antiepileptic agents ethosuximide, methsuximide, and phensuximide are derived. Unsubstituted s. has been used as an antiurolithic. * * * suc·cin·i·mide .sək sin im əd; sək sin ə .mīd, məd n a crystalline… …
76Corey–Kim oxidation — The Corey–Kim oxidation is an oxidation reaction used to synthesise aldehydes and ketones from primary and secondary alcohols.[1][2][3][4][5] It is named for American chemist and Nobelist Elias James Corey and Korean American chemist Choung Un… …
77Dakin oxidation — The Dakin oxidation The Dakin oxidation is an organic redox reaction in which an ortho or para hydroxylated phenyl aldehyde (2 hydroxybenzaldehyde or 4 hydroxybenzaldehyde) or ketone reacts with hydrogen pero …
78Diaziridine — IUPAC name Diaziridine Identifiers …
7915,16-Dihydroxy-alpha-eleostearic acid — 15,16 Dihydroxy α eleostearic acid IUPAC name (9Z,11E,13E) 15,16 Dih …
80Metal salen complexes — Salens are a class of organic compounds used as ligands in coordination chemistry. This class of compounds are named after the simplest example, N,N bis(salicylidene)ethylenediamine, more commonly referred to as salen. Contents 1 Preparation 2… …
