parent substance
11thiazin — Parent substance of a family of biologic blue dyes; e.g., methylene blue, thionin, toluidine blue …
12heterocyclic compound — Any of a class of organic compounds whose molecules contain one or more rings of atoms with at least one atom (the heteroatom) being an element other than carbon, most frequently oxygen, nitrogen, or sulfur. As in regular cyclic hydrocarbons,… …
13Heptazine — Generic heptazine; R1, R2, R3 are arbitrary substituents. A heptazine, or tri s triazine or cyamelurine, is a type of chemical compound that consist of a planar triangular core group, C6N7, or three fused triazine rings, with three substituents… …
14Nucleus — 1) In cell biology, the structure that houses the chromosomes. 2) In neuroanatomy, a group of nerve cells. * * * 1. In cytology, typically a rounded or oval mass of protoplasm within the cytoplasm of a plant or animal cell; it is surrounded by a… …
15Purine — One of the two classes of bases in DNA and RNA. The purine bases are guanine (G) and adenine (A). Uric acid, the offending substance in gout, is a purine end product. * * * The parent substance of adenine, guanine, and other naturally occurring p …
16benzene — /ben zeen, ben zeen /, n. Chem. a colorless, volatile, flammable, toxic, slightly water soluble, liquid, aromatic compound, C6H6, obtained chiefly from coal tar: used in the manufacture of commercial and medicinal chemicals, dyes, and as a… …
17derive — verb (derived; deriving) Etymology: Middle English, from Anglo French deriver, from Latin derivare, literally, to draw off (water), from de + rivus stream more at run Date: 14th century transitive verb 1 …
18prot- — or proto combining form Etymology: Greek prōt , prōto , from prōtos; akin to Greek pro before more at for 1. a. first in time < protohistory > b. beginning ; giving rise to < protoplanet > 2. paren …
19aniline — /an l in, uyn /, n. 1. Also called aniline oil, aminobenzine, phenylamine. Chem. a colorless, oily, slightly water soluble liquid, C6H5NH2, usually derived from nitrobenzene by reduction: used chiefly in the synthesis of dyes and drugs. adj. 2.… …
20derive — de·rive di rīv vb, de·rived; de·riv·ing vt to take, receive, or obtain, esp. from a specified source specif to obtain (a chemical substance) actually or theoretically from a parent substance vi to have or take origin der·i·va·tion .der ə vā shən… …
