Autres

3-Amino-9-ethylcarbazole is a peroxidase substrate suitable for use in immunoblotting and immunohistochemical staining procedures. This substrate produces an insoluble end product that is red in color and can be observed visually.

Used in biological studies as a chromogenic substrate for β-galactosidase; red color.Chlorophenol red indicates changes of pH in the range of 4.8 to 6.7 by turning the solution from yellow (at pH 4.8) to violet (at pH 6.7). Converted as signalogenic moiety of an enzyme substrate, chlorophenol red beta-D-galactopyranoside has a good proven sensitivity in the detection of beta-galactosidase activity in transfected mammalian cells, when compared to ONPG (o-nitrophenyl-beta-D-galactopyranoside) (Eustice, 1991)

2,4-Dinitrophenyl)-L-lysine hydrochloride monohydrate is a lysine derivative that has been modified with a 2,4-dinitrophenyl group. It could be used as an enzyme substrate to monitor enzymes that recognize and modify lysine residues, such as lysine methyltransferases and demethylases, lysine acylases and lysine oxidases.

Methyl 4-nitrophenyl hexylphosphonate is a phosphonate inhibitor of the enzyme serine esterase. It has been shown to be more potent than other irreversible inhibitors such as ethyl 4-nitrophenyl hexylphosphonate and methyl 4-nitrophenoxybutyl phosphate. This compound is an immobilized form of the methyl 4-nitrophenyl hexylphosphonate that is immobilized on an inert surface, such as silica gel, via a covalent bonding process. The immobilization of the molecule ensures that it will not leach from the surface and is stable over time. The molecular weight of this substance is 411.5 Daltons and its molecular formula is C8H15NO4P. This substance has a diameter of 0.8 nm and can be found in crystalline form with a melting point of 143 degrees Celsius at atmospheric pressure. Methyl 4-nitrophenyl