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  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 › 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 …

  3. nih.gov
    https://pubchem.ncbi.nlm.nih.gov › element

    Zinc | Zn (Element) - PubChem

    https://www.nist.gov/pml/database-disclaimer Zinc https://physics.nist.gov/cgi-bin/Elements/elInfo.pl?element=30 IUPAC Periodic Table of the Elements and Isotopes …

  4. nih.gov
    https://pubchem.ncbi.nlm.nih.gov › compound › acetaminophen

    Acetaminophen | C8H9NO2 | CID 1983 - PubChem

    Acetaminophen (paracetamol), also commonly known as Tylenol, is the most commonly taken analgesic worldwide and is recommended as first-line therapy in pain conditions by the World …

  5. 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.

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

    Atomic Radius | Periodic Table of Elements - PubChem

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

  7. 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 …

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

    Cocaine | C17H21NO4 | CID 446220 - PubChem

    An alkaloid ester extracted from the leaves of plants including coca. It is a local anesthetic and vasoconstrictor and is clinically used for that purpose, particularly in the eye, ear, nose, and …

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

    PERIODIC TABLE OF ELEMENTS - PubChem

    PERIODIC TABLE OF ELEMENTS

  10. nih.gov
    https://pubchem.ncbi.nlm.nih.gov › ptable › melting-point

    Melting Point | Periodic Table of Elements - PubChem

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