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Substance Name: alpha 1-Antitrypsin
RN: 480637-44-3


  • Plasma glycoprotein member of the serpin superfamily which inhibits TRYPSIN; NEUTROPHIL ELASTASE; and other PROTEOLYTIC ENZYMES.

Molecular Formula

  • Unspecified

Classification Code

  • Antiviral (COVID-19)
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Links to Resources

Names and Synonyms

Name of Substance

  • alpha 1-Antitrypsin

MeSH Heading

  • alpha 1-Antitrypsin


  • A1PI
  • AAT [Drug]
  • alpha 1 Antiprotease
  • Alpha 1- proteinase inhibitor [human]
  • Alpha 1-antitrypsin [human]
  • alpha 1-Protease Inhibitor
  • Glassia
  • Prolastin
  • Serpin A1
  • Trypsin Inhibitor, alpha 1-Antitrypsin
  • Zemaira

Systematic Name

  • alpha 1-Antitrypsin (human)

Registry Numbers

CAS Registry Number

  • 480637-44-3

System Generated Number

  • 0480637443