- Concept UI
- M0010295
- Scope Note
- A class of heterocyclic compounds that include four or more fused rings. Both aromatic or non-aromatic ring structures are included in this category.
- Terms
-
Heterocyclic Compounds, 4 or More Rings
Preferred Term
Term UI
T000899612
Date04/24/2016
LexicalTag
NON
ThesaurusID
NLM (2017)
-
Heterocyclic Compounds with Four or More Rings
Term UI
T000899526
Date04/22/2016
LexicalTag
NON
ThesaurusID
NLM (2017)
-
Heterocyclic Cpds, 4 or More Rings
Term UI
T019796
Date12/20/1996
LexicalTag
NON
ThesaurusID
NLM (1998)
-
Heterocyclic Compounds with 4 or More Rings
Term UI
T019797
Date01/01/1999
LexicalTag
NON
ThesaurusID
NLM (1966)