Sustratos cromogénicos

<p>2-Chloro-4-nitrophenyl-alpha-L-fucopyranoside is a compound that is commonly used as an enzyme substrate for glycogen synthase kinase (GSK). It is activated by GSK-3β and has been shown to inhibit the activity of this enzyme. This compound has also been found to have inhibitory effects on other enzymes such as carbonic anhydrase and lactate dehydrogenase. Additionally, 2-Chloro-4-nitrophenyl-alpha-L-fucopyranoside exhibits antifungal activity against various fungi, including those resistant to other antifungal agents such as fluopyram and prothioconazole. Its mechanism of action involves interfering with ergosterol biosynthesis, an essential component of fungal cell membranes. Furthermore, this compound has potential applications in the development of new drugs targeting GSK-3β and β-catenin signaling pathways, which are implicated in various diseases including cancer and neuro</p>

<p>5-Bromo-4-chloro-3-indoxyl-alpha-L-fucopyranoside is a chromogenic substrate for alpha-L-Fucosidase. It produces a green-blue color.</p>

<p>Chromogenic substrate for alpha-glucosidase</p>

<p>Chromogenic substrate for beta-glucuronidase (GUS) yielding blue precipitate upon cleavage. Used for identification of beta-glucuronidase. X-beta-D-glucuronide has been reported as chromogenic substrate in a number of chromogenic E. coli/ coliform culture media. About 95% of common E. coli possess beta-D-glucuronidase activity. Such chromogenic culture media are used for detection and enumeration of E. coli in food samples such as meat, dairy products and shellfish and have clinical applications in the assessment of urinary infections. It has gained international acceptance as highly accurate test for the presence of E. coli in drinking water samples. It is also used for the detection of the expression of GUS (E. coli beta-glucuronidase) gene fusion marker constructs in plants. The sodium salt has advantages over the cyclohexylammonium salt as being non-electrostatic and possessing a naturally-occurring cation.</p>

<p>5-Iodo-3-indolyl b-D-galactopyranoside is a chromogenic substrate used for beta-galactosidase. It is incorporated into media or detection kits for rapid and direct identification of microorganisms.</p>

<p>5-Amino-3-indoxyl-b-D-galactopyranoside is a chromogenic substrate for the enzyme galactosidase. 5-Amino-3-indoxyl-b-D-galactopyranoside is used in diagnostic tests to identify the presence of lactose intolerance. It can also be used to detect traces of blood in food, water, and other substances. This product has a high purity that makes it suitable for conjugation applications.</p>

<p>Chromogenic substrate for alkaline phosphatase</p>

<p>5-Bromo-4-chloro-3-indoxyl-a-D-xylopyranoside is a fluorogenic substrate that can be used in food testing and environmental testing. This product is a conjugate of the xylosidase enzyme (EC 3.2.1.37) with 5-bromo-4-chloroindoxyl, which has been shown to have a high affinity for the enzyme's active site and enzymatic activity. The purity of this product is &gt; 95% and the CAS number is 68618-41-5.</p>

<p>Aldol® 455 is a substrate for the enzyme beta-galactosidase. It is used in food testing, staining, and environmental testing. Aldol® 455 has been shown to be a good substrate for fluorogenic and chromogenic substrates. It can be conjugated with an antibody or other ligand for use in immunoassays. Aldol® 455 is of high purity and high quality, making it suitable for use in diagnostics and as an enzyme substrate. This product can also be used as a culture media additive.</p>

<p>Aldol® 467 N-acetyl-beta-D-glucosaminide is a chromogenic and fluorogenic enzyme substrate used for detection of beta-N-acetyl-glucosaminidase activity. The colorless enzyme substrate is cleaved in the presence of beta-N-acetyl-glucosaminidase yielding development of a yellow product. In addition, green fluorescence is generated when a suitable matrix or Aldol® 355 fluorescence enhancer is present. Aldol® 467 N-acetyl-beta-D-glucosaminide amide can be used in enzymatic assays or in live bacterial cultures. Aldol® 467 N-acetyl-beta-D-glucosaminide is suitable for use in liquid and solid media, under aerobic as well as anaerobic conditions.</p>

<p>N-Benzoyl-Val-Gly-Arg p-nitroanilide hydrochloride is a fluorogenic substrate that can be used for the detection of β-glucuronidase. It has been shown to have high purity and quality, which makes it an excellent choice for use in food testing and staining.</p>

<p>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.</p>