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Substance Name: Tetrapeptide carbamate
RN: 80803-63-0


  • The combination of aprotinin with leucocyte elastase inhibitor PC5 prevents ulceration of the cornea & inhibits corneal vascularization after soft contact lens wear.
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Names and Synonyms

Name of Substance

  • Tetrapeptide carbamate


  • PC-5

Systematic Names

  • PC 5 (resin)
  • PC5

Registry Numbers

CAS Registry Number

  • 80803-63-0

System Generated Number

  • 0080803630


Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 oral 10430mg/kg (10430mg/kg)   Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 52(11), Pg. 93, 1987.