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Antipain dihydrochloride, 5 mg

≥30 U/mg, for biochemistry
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N-(Nα-Carbonyl-Arg-Val-Arg-al)-Phe dihydrochloride
Empirical formula C27H44N10O6 · 2 HCl
Molar mass (M) 677,6 g/mol
Melting point (mp) 178 °C
Storage temp. -20 °C
Transport temp. ambient temp.
WGK 1
CAS No. 37682-72-7

Serine/cysteine protease inhibitor and in general of proteases similar to trypsin.
Isolated from Streptomyces.
Stock solution: 50 mg/ml (75 mM) in H2O, DMSO or ethanol. Storage of stock solution: at -20 °C max. 1 month.

Antipain was isolated from streptomycin (actinomycetes). Reversible inhibition of papain (derivation of the name: anti-papain), trypsin, cathepsin A, B, D, plasmin, chymotrypsin, pepsin and calpain l.
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Art. No. 2933.1

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Antipain dihydrochloride ≥30 U/mg, for biochemistry

Antipain was isolated from streptomycin (actinomycetes). Reversible inhibition of papain (derivation of the name: anti-papain), trypsin, cathepsin A, B, D, plasmin, chymotrypsin, pepsin and calpain l.


Antipain has a similar spectrum of activity to leupeptin.


Directions for use

Working concentration: 10-50 µg/ml (15-75 µM).



Antipain dihydrochloride
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2933.1 5 mg plastic

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The following analysis certificates have been found:

Type analysis

Appearancewhite powder
Activity (trypsin, L-BAPA)≥30 U/mg
Solubility (0,5 % in H2O)clear