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HomeProduct name listBenzamidine hydrochloride

Benzamidine hydrochloride

Synonym(s):Additive Screening Solution 37/Kit-No 78374;Benzamidine hydrochloride solution;Benzamidine, Hydrochloride - CAS 1670-14-0 - Calbiochem

  • CAS NO.:1670-14-0
  • Empirical Formula: C7H9ClN2
  • Molecular Weight: 156.61
  • MDL number: MFCD00013025
  • EINECS: 216-795-4
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-11-05 08:26:49
Benzamidine hydrochloride Structural

What is Benzamidine hydrochloride?

Description

Benzamidine hydrochloride is a reversible inhibitor of trypsin, trypsin-like enzymes, and serine proteases. A concentration of approximately 1 mM is used for general protease inhibition. To inhibit proteases from yeast, a range of 0.5 to 4.0 mM is used and it is for the most part interchangeable with pepstatin A.
In addition to being a strong competitive inhibitor of trypsin, benzamidine HCl has been also shown to be a strong competitive inhibitor of thrombin and plasmin. It was also found to be as effective as aprotinin in the prevention of glucagon degradation in human plasma.

Chemical properties

white to off-white powder

The Uses of Benzamidine hydrochloride

Benzamidine is a reversible inhibitor of serine proteases, including trypsin, plasmin, and thrombin (Kis = 35, 350, and 220 μM, respectively). In addition to its use as a general serine protease inhibitor, benzamidine is used, when immobilized, to purify novel proteases.

What are the applications of Application

Benzamidine Hydrochloride, Anhydrous is a serine protease enzyme inhibitor

Preparation

To a stainless steel rocking autoclave equipped with a stirrer is added 103.0 gm (1.0 mole) of benzonitrile, 214.0 gm (4.0 mole) of ammonium chloride, and 306.0 gm (18.0 mole) of ammonia is introduced by means of a transfer bomb. The reaction mixture is heated at 150°C for 18 hr (pressure: 1300-6500 psig), cooled, and, with appropriate precautions for the safe control of the excess ammonia, is vented to atmospheric pressure. The reaction mixture is extracted with ether to remove approximately 5% unreacted benzonitrile, and then extracted with hot acetonitrile or ethanol to separate the amidine hydrochloride from the unreacted ammonium chloride. Concentration of the latter affords 120.5 gm (77%) of benzamidine hydrochloride, m.p. 161-163°C.
Preparation of Benzamidine Hydrochloride

Biological Activity

Benzamidine hydrochloride is an reversible competitive inhibitor of trypsin-like serine proteases, with Kis of 97 μM, 21 μM, 20 μM and 110 μM for uPA, trypsin, tryptase and factor Xa, respectively.

Safety Profile

Moderately toxic byintraperitoneal route. When heated to decomposition itemits toxic vapors of NOx, HCl, and Cl-.

in vitro

Benzamidine hydrochloride has weak inhibition for tPA and thrombin, with Kis of 750 μM and 320 μM, respectively.

References

1) Markwardt?et al. (1968)?Comparative studies on the inhibition of trypsin, plasmin, and thrombin by derivatives of benzylamine and benzamide; Eur. J. Biochem.,?6?502 2) Deutscher?et al.?(1990),?Maintaining protein stability; Methods Enzymol.,?182?83 3) Jaswinski?et al.?(1990),?Preparations of extracts from yeast; Methods Enzymol.,?182?154 4) Ensinck?et al.?(1972),?Use of Benzamidine as a proteolytic inhibitor in the radioimmunoassay of glucagon in plasma; J. Clin. Endocrinol. Metab.,?35?463 5) Jeffcoate?et al. (1974),?Use of benzamidine to prevent the destruction of thyrotropin-releasing hormone (TRH) by blood; Endocrinol. Metab,?38?155

Properties of Benzamidine hydrochloride

Melting point: 86-88 °C(lit.)
storage temp.  2-8°C
solubility  DMF: 25 mg/ml
DMSO: 25 mg/ml
Ethanol: 10 mg/ml
PBS (pH 7.2): 3 mg/ml
form  Powder
color  White to off-white
PH 4.0 to 6.5(50g/L, 25 ℃)
Water Solubility  soluble
BRN  3594959
Stability: Stable for 2 years from date of purchase as supplied. Solutions are not stable and must be prepared fresh daily
CAS DataBase Reference 1670-14-0(CAS DataBase Reference)
EPA Substance Registry System Benzenecarboximidamide, monohydrochloride (1670-14-0)

Safety information for Benzamidine hydrochloride

Signal word Warning
Pictogram(s)
ghs
Exclamation Mark
Irritant
GHS07
GHS Hazard Statements H315:Skin corrosion/irritation
H319:Serious eye damage/eye irritation
Precautionary Statement Codes P264:Wash hands thoroughly after handling.
P264:Wash skin thouroughly after handling.
P280:Wear protective gloves/protective clothing/eye protection/face protection.

Computed Descriptors for Benzamidine hydrochloride

InChIKey LZCZIHQBSCVGRD-UHFFFAOYSA-N

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