(chemistry) β-carboline

a seed / a pit or stone in a fruit / a gamete (reproductive cell such as a spermatozoan or egg) / a lineage, bloodline / an origin, cause / the materials or ingredients from which something is made

(organic chemistry) carboline

chemical

chemistry (branch of natural science)

as far as ... is concerned; in terms of ...

a target, a mark, a bullseye / an objective, an object (of doing something)

seed / plant, sow / class, kind, variety / (taxonomy) species

a seed / a kind, type, sort, class, or category / (taxonomy) a species

counter for number of kinds or types