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Ph. Eur.

ATC (Anatomical Therapeutic Chemical Classification)


CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Category

Medical gas

Chemical Name

minimum 99.5 per cent V/V Nitrogenapplies to Nitrogen for medical use (Ph. Eur.)

Foreign Names

  • Nitrogenium (Latin)
  • Stickstoff (German)
  • Azote (French)
  • Nitrogén (Spanish)

Generic Names

  • Nitrogen (OS: JAN)
  • E 941 (E Number) (IS)
  • UNII-N762921K75 (IS)
  • Azote (PH: Ph. Eur. 9)
  • Nitrogen (PH: BP 2018, JP XVII, NF 33, Ph. Eur. 9, USP 35)
  • Nitrogen, Low-Oxygen (PH: BP 2018)
  • Nitrogenium (PH: Ph. Eur. 9)
  • Stickstoff (PH: Ph. Eur. 9)

Brand Names

  • Airapy [+ Oxygen]
    AGA Linde Healthcare, Denmark
  • INOmax 400 ppm mol/mol
    Linde Gaz, Hungary
  • Liquid Nitrogen
    Air Liquide Japan, Japan; Air Water, Japan
  • Maxiair
    Maxima Air, Israel
  • Medicinsk Luft Air Liquide 100% [+ Oxygen]
    Air Liquide Gas, Denmark
  • Medicinsk Luft Praxair Scandinavia 100% [+ Oxygen]
    Praxair, Denmark
  • Monoxid de Azot Messer
    Messer Romania Gaz, Romania
  • Neophyr
    SOL, Romania
  • Nitrogen
    Air Liquide Japan, Japan; Air Water, Japan; Airgas USA, United States; Aspen Pharma, United States; Norco, United States; Oxygen & Argon Works, Israel
  • Protoxid de Azot Medicina Siad
    SIAD ROMÂNIA, Romania
  • Protoxid de Azot Messer
    Messer Romania Gaz, Romania
  • Protoxid de Azot Sol 100%
    SOL, Romania
  • VasoKINOX
    Air Liquide Gas, Denmark
  • VasoKINOX 800 ppm mole/mole
    Carbagas, Switzerland


ISInofficial Synonym
JANJapanese Accepted Name
OSOfficial Synonym
PHPharmacopoeia Name
Ph. Eur.European Pharmacopoeia

Further information on drug naming conventions: International Nonproprietary Names.

Important Notice: The international database is in BETA release. This means it is still under development and may contain inaccuracies. It is not intended as a substitute for the expertise and judgement of your physician, pharmacist or other healthcare professional. It should not be construed to indicate that the use of any medication in any country is safe, appropriate or effective for you. Consult with your healthcare professional before taking any medication.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.