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Descriptor in English: Heterocyclic Compounds, 2-Ring
Descriptor in Spanish: Compuestos Heterocíclicos con 2 Anillos
Descriptor in Portuguese: Compostos Heterocíclicos com 2 Anéis
Descriptor in French: Composés hétérobicycliques
Entry term(s): 2-Ring Heterocyclic Compounds
Fused Heterocyclic Compounds, Two Ring
Fused Heterocyclic Compounds, Two-Ring
Heterocyclic Compounds, 2 Ring
Two Ring Heterocyclic Compounds
Tree number(s): D03.633.100
Scope note: A class of heterocyclic compounds that include a two-ring fused structure. Both aromatic and non-aromatic ring structures are included in this category.
Annotation: general or unspecified; prefer specifics
Allowable Qualifiers: AD administration & dosage
AE adverse effects
AG agonists
AI antagonists & inhibitors
AN analysis
BL blood
CF cerebrospinal fluid
CH chemistry
CL classification
CS chemical synthesis
EC economics
HI history
IM immunology
IP isolation & purification
ME metabolism
PD pharmacology
PK pharmacokinetics
PO poisoning
RE radiation effects
SD supply & distribution
ST standards
TO toxicity
TU therapeutic use
UR urine
History Note: 98; use explode 1967-97
DeCS UI: 6734
Descriptor UI: D006574
Date Established: 1998/01/01
Date of Entry: 1999/01/01
Revision Date: 2016/07/01
Heterocyclic Compounds, 2-Ring - Preferred
Concept UI M0010293
Scope note A class of heterocyclic compounds that include a two-ring fused structure. Both aromatic and non-aromatic ring structures are included in this category.
Preferred term Heterocyclic Compounds, 2-Ring
Entry term(s) 2-Ring Heterocyclic Compounds
Fused Heterocyclic Compounds, Two Ring
Fused Heterocyclic Compounds, Two-Ring
Heterocyclic Compounds, 2 Ring
Two Ring Heterocyclic Compounds



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