Bromopyrogallol red (16574-43-9)
Bromopyrogallol red is frequently used in analytical chemistry as a reagent for spectrophometric analysis and as an complexometric indicator.
3,4-Dihydro-2H-pyran (25512-65-6, 110-87-2)
Dihydropyran is a heterocyclic compound with the formula C5H8O. The six-membered, non-aromatic ring has five carbon atoms and one oxygen atom. It contains one double bond.
Indoline is an aromatic heterocyclic organic compound with the chemical formula C8H9N. It has a bicyclic structure, consisting of a six-membered benzene ring fused to a five-membered nitrogen-containing ring. The compound is based on the indole structure, but the 2-3 bond is saturated.