Chemicals and Drugs

Californium

A man-made radioactive actinide with atomic symbol Cf, atomic number 98, and atomic weight 251. Its valence can be +2 or +3. Californium has medical use as a radiation source for radiotherapy.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

A man-made radioactive actinide with atomic symbol Cf, atomic number 98, and atomic weight 251. Its valence can be +2 or +3. Californium has medical use as a radiation source for radiotherapy.

Chemical Identity

Chemical Information

Molecular Formula
Cf
Molecular Weight
251.07959 g/mol
CAS Registry No.
7440-71-3
IUPAC Name
californium
InChIKey
HGLDOAKPQXAFKI-UHFFFAOYSA-N
SMILES
[Cf]
MeSH Unique ID
D002142
Source
PubChem CID 23997

MeSH Record

Classification

Broader headings

Related Concepts

Knowledge Graph

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MeSH Record

Aspects Covered

19 allowable subheadings

Indexed with the subheadings administration & dosage, adverse effects, analysis, blood, cerebrospinal fluid, chemistry, classification, economics, history, isolation & purification, metabolism, pharmacokinetics, pharmacology, poisoning, standards, supply & distribution, therapeutic use, toxicity, urine.

MeSH Hierarchy

Tree Numbers

  1. D01w.268w.271w.100w.150w
  2. D01w.268w.556w.156w
  3. D01w.496w.749.305w.100w.150w
  4. D01w.552w.020w.200w
  5. D01w.552w.544w.156w

AMA Style

References

  1. National Library of Medicine. Californium. Medical Subject Headings (MeSH). 2026. Unique ID D002142. http://id.nlm.nih.gov/mesh/2026/D002142
  2. Californium. In: Wikipedia. https://en.wikipedia.org/wiki/Californium
  3. Californium. In: Wikidata. https://www.wikidata.org/wiki/Q1888
  4. Californium. In: PubChem Compound. CID 23997. https://pubchem.ncbi.nlm.nih.gov/compound/23997