Compared to fluorescein labeling reagents such as FITC and FAM, CR110 reagents give more photostable and pH-independent bioconjugates that have the absorption maximum around the preferred 489 nm excitation wavelength. They are photostable alternative reag
Hydrogen sulfide (H2S) is an important gaseous mediator, like nitric oxide, that has significant effects on the immunological, neurological, cardiovascular and pulmonary systems of mammals. WSP-5 is a reactive disulfide-containing, fluorescent probe designed for fast detection of H2S in biological samples and cells. Through a reaction-based fluorescent turn-on strategy, WSP-5 selectively and rapidly reacts with H2S, generating a fluorophore with excitation and emission maxima of 502 and 525 nm, respectively. WSP-5 demonstrates a faster fluorescence turn-on rate (60- vs. 130-fold) and a more sensitive detection limit (47 vs. 60 nM) toward H2S compared to WSP-1 .
5(6)-TAMRA contains a carboxylic acid that can be used to react with primary amines via carbodiimide activation of the carboxylic acid. This bright, orange-fluorescent dye produces conjugates with absorption/emission maxima of ~555/580 nm.
5(6)-Carboxynaphthofluorescein diacetate serves as a fluorescent substrate in esterase assays, where it is cleaved by intracellular esterases, resulting in red fluorescence for enzyme activity measurement (Ex = 590 nm; Em = 645 nm) [1].
6-CR110 [6-Carboxyrhodamine110] *Singleisomer* is a Fluorescein for peptide and oligonucleotide labeling. Compared to fluorescein labeling reagents such as FITC and FAM, CR110 reagents give more photostable and pH-independent bioconjugates that have the absorption maximum around the preferred 488 nm excitation wavelength. They are photostable alternative reagents superior to FITC and FAM.
5-Propargylamino-ddCTP is a nucleoside molecule utilized in the synthesis of cyanine dye-nucleotide conjugate, which finds application in nucleic acid labeling and sequence analysis.
5-Propargylamino-ddUTP is a nucleoside molecule employed for the synthesis of cyanine dye-nucleotide conjugates, commonly used in nucleic acid labeling and sequence analysis.
HKSOX-1m (5 6-mixture) serves as a mitochondria-targeting O2 fluorescent probe with an excitation emission wavelength of 509 534nm (green), showcasing exceptional selectivity and sensitivity for O2 across a wide pH spectrum and in the presence of strong oxidants and prevalent reductants within cells.
The cell-permeant pH indicator, carboxy SNARF-1, acetoxymethyl ester, acetate (CAS #126208-13-7) has a pKa of ~7.5 after de-esterification, thus is useful for measuring pH changes between pH 7 and pH 8. Carboxy-SNARF-1 exhibits a significant pH-dependent