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Substance Name: Inter-alpha-inhibitor
RN: 39346-44-6


  • Inhibits bovine trypsin & chymotrypsin; complex formed with chymotrypsin less stable; alpha-glycoprotein; SHAP - serum-derived hyaluronan associated protein; RefSeq NM_002215 (ITIH1, human), NM_002216 (ITIH2); NM_002217 (ITIH3).

Classification Codes

  • Enzyme Inhibitors
  • Protease Inhibitors
  • Serine Proteinase Inhibitors
  • Trypsin Inhibitors
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Names and Synonyms

Name of Substance

  • Inter-alpha-inhibitor


  • Inter-alpha-trypsin inhibitor
  • Inter-alpha-trypsin inhibitor, heavy chain
  • Protein pi
  • Shap protein

Systematic Name

  • Trypsin inhibitor, inter-alpha-

Registry Numbers

CAS Registry Number

  • 39346-44-6

System Generated Number

  • 0039346446