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Specifications

Catalog #	C5068-40
Protease inhibitor produced by Actinomycetes. Inhibits serine and cysteine proteases	a, b, g, d chymotrypsin, papain, cathepsin A, B and C. Mixture of Types A, B and C where A=Leu, B= Val, C= Ile. Mostly Type A.
Solubility (10mg/ml, glacial acetic acid)	Colorless to yellow, clear, complete
Loss on Drying	<3%
Percentage of X components	Leu: ~75%
	Val: ~20%
	Ile:~5%
Activity (IC50) (alpha-chymotrypsin/casein, pH 7.4, 37°C)	~0.2ug/ml
Storage and Stability	Lyophilized powder may be stored at -20°C. Stable for 12 months at -20°C. Reconstitute with sterile glacial acetic acid. Aliquot to avoid repeated freezing and thawing. Store at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
CAS Number	9076-44-2
Molecular Formula	C31H41N7O6
Molecular Weight	604.9
Form	White to off-white powder
Important Note	This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.
Alternate names	(S)-1-Carboxy-2-phenylethyl)-carbamoyl- -[2-iminohexahydro-4(S)-pyrimidyl]-(S)-glycyl-X-phenylalaninal