carboline

Did you mayhaps mean one of these? Caroline, caroline

Definitions

n. organic chemistry Any of four isomeric tricyclic heterocycles consisting of a pyridine ring fused with the five-membered ring of an indole; many of their derivatives have biological action

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Popularity in the 21st Century
“But whoever had decided to place this particular fern at poolside obviously didn't know that the spores of veriformans contained a deadly beta-carboline alkaloid.”

Jurassic Park
“This is best accomplished by thorough boiling, but in cases where this can not be at once carried out, it is advisable to use some chemical antiseptic; of these, perhaps the best is creo-carboline, which may be employed in a 1-500 solution in water; where this solution is not obtainable, a 5-per-cent. solution of carbolic acid in water will answer.”

Health on the Farm A Manual of Rural Sanitation and Hygiene
“None of the excretions from persons afflicted with typhoid fever should ever be emptied until thoroughly disinfected with creo-carboline or strong lime-water, and under no circumstances should these be poured out in the neighborhood of springs or wells.”

Health on the Farm A Manual of Rural Sanitation and Hygiene