Descriptors Found: 1
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Descriptor English:   Heterocyclic Compounds, 2-Ring 
Descriptor Spanish:   Compuestos Heterocíclicos con 2 Anillos 
Descriptor Portuguese:   Compostos Heterocíclicos com 2 Anéis 
Synonyms English:   2-Ring Heterocyclic Compounds
Fused Heterocyclic Compounds, Two Ring
Fused Heterocyclic Compounds, Two-Ring
Heterocyclic Compounds, 2 Ring
Two Ring Heterocyclic Compounds  
Tree Number:   D03.633.100
Definition English:   A class of heterocyclic compounds that include a two-ring fused structure. Both aromatic and non-aromatic ring structures are included in this category. 
Indexing Annotation English:   general or unspecified; prefer specifics
History Note English:   98; use explode 1967-97 
Allowable Qualifiers English:  
AD administration & dosage AE adverse effects
AG agonists AN analysis
AI antagonists & inhibitors BL blood
CF cerebrospinal fluid CS chemical synthesis
CH chemistry CL classification
EC economics HI history
IM immunology IP isolation & purification
ME metabolism PK pharmacokinetics
PD pharmacology PO poisoning
RE radiation effects ST standards
SD supply & distribution TU therapeutic use
TO toxicity UR urine
Record Number:   6734 
Unique Identifier:   D006574 

Occurrence in VHL: