1,700+ technical articles by Aladdin Scientific's scientists on reagent selection, reaction mechanisms, assay design and formulation. New every week.
Alginate is a natural anionic polysaccharide mainly derived from the cell walls of brown algae. Its repeating structural units consist of β-D-mannuronic acid (M) and α-L-guluronic acid (G) linked by 1→4 glycosidic bonds, and it occurs as blockwise distributions of M-blocks, G-blocks, and ...
Diphenylamine (DPA) is a representative aromatic amine compound consisting of two phenyl rings linked to an amino group. Its aromatic amine condensation reactivity and ability to extend π-conjugation make it a key component in a variety of colorimetric systems in analytical chemistry. The ...
Purine (purine): An aromatic nitrogen-containing heterocycle formed by the fusion of a pyrimidine ring and an imidazole ring, with the molecular formula C₅H₄N₄. The purine core underpins many key biomolecules: from purine bases in nucleic acids (e.g., adenine, guanine), to ...
Piperidine is a six-membered saturated nitrogen-containing heterocycle, often understood as "a carbon in cyclohexane replaced by nitrogen."
Piperazine is a saturated six-membered nitrogen heterocycle with two nitrogen atoms at the 1,4-positions (opposite each other on the ring). It can therefore also be called 1,4-diazacyclohexane. Unsubstituted piperazine is essentially a cyclic diamine (both nitrogens are secondary amines), which ...
Oxazolines and oxazolidines (more often referring to oxazolidines, i.e., N,O-acetals/hemiaminals) appear frequently in R&D for a fundamental reason: with very little added steric bulk, they replace “uncontrollable system sensitivity” with “designable structural variables.” That makes it ...
Pancreatin is a composite enzyme preparation derived from animal pancreas and typically contains proteolytic activity (often represented by trypsin activity), pancreatic amylase activity, and pancreatic lipase activity. A defining feature is its synergistic hydrolytic capacity toward protein, ...
Fluorophores are light-emitting molecules or materials that absorb energy upon excitation at specific wavelengths and emit photons at longer wavelengths. They are widely used in cell imaging, flow cytometry, immunoassays, nucleic-acid quantification, protein–protein interaction analysis, and ...
Coelenterazine (Coelenterazine, CTZ, CAS 55779-48-1) is a representative marine luciferin that is widely used as the substrate and light-emitting chromophore for multiple marine luciferases and the jellyfish photoprotein (Aequorin). By tuning spectral position, emission intensity, reaction ...