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Substance Name: Amb a II protein, Ambrosia artemisiifolia
RN: 145892-07-5


  • Amb a I & II are major allergens in pollen of short ragweed (formerly antigen E & K, respectively).
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Names and Synonyms

Name of Substance

  • Amb a II protein, Ambrosia artemisiifolia


  • Amb a II
  • Ambrosia artemisiifolia II
  • Antigen K (ragweed)

Systematic Name

  • Allergen Amb a II (Ambrosia artemisifolia clone K6-5 precursor reduced)

Registry Numbers

CAS Registry Number

  • 145892-07-5

System Generated Number

  • 0145892075