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Substance Name: Grass pollen extract, alum-adsorbed
RN: 8057-66-7


  • Pollen extract prepared from grass such as timothy, orchard grass, perennial ryegrass, sweet vernalgrass, or meadow fescue; usually it is extracted with pyridine and alum-precipitated to provide allergen extract for medical use.
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Names and Synonyms

Name of Substance

  • Grass pollen extract, alum-adsorbed

Systematic Name

  • Allpyral

Registry Numbers

CAS Registry Number

  • 8057-66-7

System Generated Number

  • 0008057667