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Substance Name: Insulin like growth factor I (1-27)-gly-gly-gly-gly-(38-70)
RN: 131595-85-2


  • Identical to human insulin-like growth factor I with the exception that residues 28-37 of hIGF-I are replaced by a four amino acid glycine bridge.

Molecular Formula

  • C296-H456-N82-O90-S7
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Names and Synonyms

Name of Substance

  • Insulin like growth factor I (1-27)-gly-gly-gly-gly-(38-70)


  • (1-27,Gly4,38-70)igf-I
  • Gly4-igf-I
  • Igf-I ((1-27),gly4,(38-70))

Systematic Name

  • Insulin-like growth factor I (human), 28-glycine-29-glycine-31-de-L-tyrosine-33-de-L-serine-34-de-L-serine-35-de-L-serine-36-de-L-arginine-37-de-L-arginine-

Registry Numbers

CAS Registry Number

  • 131595-85-2

System Generated Number

  • 0131595852