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Substance Name: Connective tissue-activating peptide
RN: 69344-77-0


  • Distinct platelet secretory protein with antiheparin activity; differs from PF4 in affinity to heparin, amino acid composition & antigenic determinants.
  • Slightly basic saline soluble polypeptide extractable from many tissues; induces hypermetabolic activity in cultivated human synovial cells 10,000-15,000.

Molecular Formula

  • Unspecified

Classification Codes

  • Central Nervous System Agents
  • Coagulants
  • Hematologic Agents
  • Heparin Antagonists
  • Mutation Data
  • Narcotic Antagonists
  • Natural Product
  • Peripheral Nervous System Agents
  • Sensory System Agents
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Links to Resources

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Names and Synonyms

Name of Substance

  • Connective tissue-activating peptide
  • Low affinity platelet factor 4



Systematic Names

  • Blood platelet factor 4, low-affinity
  • Connective tissue-activating peptide III
  • Human platelet extract, ctap-III

Registry Numbers

CAS Registry Number

  • 69344-77-0

Other Registry Number

  • 69670-74-2

System Generated Number

  • 0069344770