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Substance Name: Uranium
RN: 7440-61-1
UNII: 4OC371KSTK
InChIKey: JFALSRSLKYAFGM-UHFFFAOYSA-N

Note

  • A radioactive element of the actinide series of metals. It has an atomic symbol U, atomic number 92, and atomic weight 238.03. U-235 is used as the fissionable fuel in nuclear weapons and as fuel in nuclear power reactors.

Molecular Formula

  • U

Molecular Weight

  • 238.03
 

Classification Codes

  • 2007 CERCLA Priority List, Rank: 98
  • 2011 CERCLA Priority List, Rank: 97
  • TWA 0.05 mg/m3 for soluble compounds; 0.25 mg/m3 for insoluble compounds
  • TWA 0.2 mg/m3; STEL 0.6 mg/m3; Confirmed human carcinogen

Names and Synonyms

Name of Substance

  • Uranium

MeSH Heading

  • Uranium

Synonyms

  • 238U
  • 238U Element
  • CCRIS 9497
  • EINECS 231-170-6
  • HSDB 2553
  • UNII-4OC371KSTK
  • Uranium
  • Uranium I ((238)U)
  • Uranium, isotope of mass 238
  • Uranium-238

Systematic Name

  • Uranium

Superlist Names

  • UN2979
  • Uranium
  • Uranium metal, pyrophoric
  • Uranium metal, pyrophoric [UN2979] [Radioactive]
  • Uranium, elemental
  • Uranium, insoluble compounds
  • Uranium, natural
  • Uranium, soluble compounds

Registry Numbers

CAS Registry Number

  • 7440-61-1

FDA UNII

  • 4OC371KSTK

Other Registry Numbers

  • 1240656-48-7
  • 24678-82-8

System Generated Number

  • 0007440611

Structure Descriptors

InChI

InChI=1S/U

InChIKey

JFALSRSLKYAFGM-UHFFFAOYSA-N

Smiles

[U]

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
rat LD50 unreported 750mg/kg (750mg/kg)   Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 37(10), Pg. 27, 1972.