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A yellow or gray powdery Protease type enzyme. Trypsin is formed in the pancreas for the digestion of protein to amino acids. It also occurs in small amounts in yeast, mold, bacteria, and urine. Trypsin is used to dehair hides and skin.

Synonyms and Related Terms

Trypsin (Deut.); trypsine (Fr., Ned.); trypsyna (Pol.); tripsina (Port.); Parenzyme; Parenzymol; Tryptar; Trypure

Hazards and Safety

  • Skin contact causes irritation and may cause an allergic reaction.
  • Southern Biological: SDS

Physical and Chemical Properties

  • Soluble in water. Insoluble in ethanol, glycerol.
  • Optimum activity at pH 7-9.
CAS 9002-07-7
Molecular Weight mol. wt. = 24,000

Resources and Citations

  • G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 87
  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 9926
  • A Glossary of Paper Conservation Terms, Margaret Ellis (ed.), Conservation Center of the Institute of Fine Arts, New York City, 1998
  • Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
  • The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998