About 536,000 results
Open links in new tab
  1. nih.gov
    https://pubchem.ncbi.nlm.nih.gov › periodic-table

    Periodic Table of Elements - PubChem

    Interactive periodic table with up-to-date element property data collected from authoritative sources. Look up chemical element names, symbols, atomic masses and other properties, …

  2. nih.gov
    https://pubchem.ncbi.nlm.nih.gov

    PubChem

    PubChem is the world's largest collection of freely accessible chemical information. Search chemicals by name, molecular formula, structure, and other identifiers. Find chemical and …

  3. nih.gov
    https://pubchem.ncbi.nlm.nih.gov › periodic-table › pdf › Periodic_Table_…
    [PDF]

    PERIODIC TABLE OF ELEMENTS - PubChem

    PERIODIC TABLE OF ELEMENTSChemical Group Block 18

  4. nih.gov
    https://pubchem.ncbi.nlm.nih.gov › ghs

    GHS Classification Summary - PubChem

    GHS, the Globally Harmonized System of Classification and Labeling of Chemicals, was developed by the United Nations as a way to bring into agreement the chemical regulations …

  5. nih.gov
    https://pubchem.ncbi.nlm.nih.gov › compound › tetrodotoxin

    Tetrodotoxin | C11H17N3O8 | CID 11174599 - PubChem

    Tetrodotoxin is a neurotoxin with potential analgesic activity. Tetrodotoxin binds to the pores of fast voltage-gated fast sodium channels in nerve cell membranes, inhibiting nerve action …

  6. nih.gov
    https://pubchem.ncbi.nlm.nih.gov › periodic-table › atomic-mass

    Atomic Mass | Periodic Table of Elements - PubChem

    Explore how atomic mass changes with atomic number in the periodic table of elements via interactive plots.

  7. nih.gov
    https://pubchem.ncbi.nlm.nih.gov › periodic-table › ionization-energy

    Ionization Energy | Periodic Table of Elements - PubChem

    Explore how ionization energy changes with atomic number in the periodic table of elements via interactive plots.

  8. nih.gov
    https://pubchem.ncbi.nlm.nih.gov › compound › cocain

    Cocaine | C17H21NO4 | CID 446220 - PubChem

    Cocaine is a tropane alkaloid obtained from leaves of the South American shrub Erythroxylon coca. It has a role as a local anaesthetic, a central nervous system stimulant, a sodium …

  9. nih.gov
    https://pubchem.ncbi.nlm.nih.gov › periodic-table › density

    Density | Periodic Table of Elements - PubChem

    Explore how density changes with atomic number in the periodic table of elements via interactive plots.

  10. nih.gov
    https://pubchem.ncbi.nlm.nih.gov › compound › Nitrogen-tetroxide

    Nitrogen tetroxide | N2O4 | CID 25352 - PubChem

    Nitrogen tetroxide | N2O4 | CID 25352 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities ...

Refresh