Solutions et indicateurs volumétriques analytiques

Stability Moisture, Light Sensitive
Applications Fluorescence: max. Abs. 561nm; max. Em. 581nm; e x 10-3: 126

Applications A thiol reactive spin label compound used to probe the conformation and dynamics of thiolated proteins.

Stability Hygroscopic
Applications Quercitrin is known as an bio flavonoid antioxidant and was investigated extensively in its antioxidant potential in streptrozotocin (STZ)-induced diabetic rats. Quercitrin is also a constituent of the dye quercitron. Quercitrin can be found in Tartary buckwheat and in oaks species such as white oak or European red oak.
References Babujanarthanam, R., et al.: Mol. Cell. Biochem. 358, 121 (2011); Sanders, R.A., et al.: J. Biochem. Mol. Toxicol.,15, 143 (2001); Pavlisic, B., et al.: Tekstilec., 54, 69 (2011);

Applications Sodium Metatungstate Hydrate is a derivative of Sodium Tungstate (S673800), a potential therapy for obesity. Sodium tungstate dihydrate is also an inhibitor of acid phosphatases.
References Claret, M., et al.: Endocrinology, 146 4362 (2005); Stankiewicz, P. & Gresser, M.: Biochemistry, 27, 206 (1988)

Stability Very Air Sensitive
Applications A new labelled metabolite of Famprofazone in humans.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References Caldwell, J., et al.: Biochem. J., 129, 11 (1972), Oh, E., et al.: Xenobiotica, 22, 377 (1992), Shin, H.S., et al.: J. Anal. Toxicol., 22, 55 (1998),

Applications A thiol reactive spin label compound used to probe the conformation and dynamics of thiolated proteins.
References Huang, H., et al.: Biochem., 47, 12380 (2008), Antoniou, C., et al.: Anal. Biochem., 376, 160 (2008), Padmavathi, P., et al.: J. Mol. Biol., 378, 204 (2008),

Applications A spin label for ESR studies.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package

Applications CY5 Triethylamine salt is the salt form of CY5(C951310) which is a photoswitchable cyanine dye. The photoswitching mechanism was investigated using thiol agents and it was concluded that photoconversion into the dark state is pH and thiol dependent and the dark state product is a cyanine-thiol adduct.
References Dempsey, G., et al.: J. Am. Chem. Soc., 131, 18192 (2009);

Applications Di-4-ANBDQPQ is a voltage-sensitive hemicyanine dye that is used to probe the electrical activity in cells.
References Zhou, W., et al.: J. Neurosci. Methods, 164, 225 (2007)