UMLS Hierarchy Tracer (Ancestors & Descendants)

Enter a Concept ID (CUI) to view its parent and child hierarchies. Select a preferred language for display names; **English will be used as a fallback**.

Displaying names in **English (ENG)** (with English fallback).

Target Concept: Styrene (C0038515)

Ancestor Paths (Parents/Root)

Ancestor Path 1 (Root Source: LIMIT)

  1. ... MAX DEPTH REACHED ... CUI: LIMIT / Source: LIMIT
  2. MeSH Descriptors CUI: C1256739 / Source: MSH
  3. Topical Descriptor CUI: C1256741 / Source: MSH
  4. Chemicals and Drugs (MeSH Category) CUI: C0007995 / Source: MSH
  5. Organic Chemicals CUI: C0029224 / Source: MSH
  6. Hydrocarbons CUI: C0020242 / Source: MSH
  7. Hydrocarbons, Cyclic CUI: C0020248 / Source: MSH
  8. Hydrocarbons, Aromatic CUI: C0020245 / Source: MSH
  9. Benzene Derivatives CUI: C0005037 / Source: MSH
  10. Benzylidene Compounds CUI: C0005107 / Source: MSH
  11. Styrenes CUI: C0038513 / Source: MSH
  12. Styrene (START) CUI: C0038515 / Source: MSH

Descendant Paths (Children/Leaves)

Descendant Path 1 (Top Source: MSH)

  1. Styrene (START) CUI: C0038515 / Source: MSH
  2. Polystyrenes CUI: C0032604 / Source: MSH
  3. Cholestyramine Resin CUI: C0008402 / Source: MSH

Unique Ancestor Paths Found: 1 | Unique Descendant Paths Found: 1 | Max Depth: 10 levels.