Dye Reagents

A dye is a colored substance that has an affinity for the substrate applied to it.

Based on selective fluorescent staining with Nile red (NR), and then density extraction and filtration, a new method for the analysis of microplastics in environmental samples was proposed. Dyes stick to plastic surfaces and fluoresce when irradiated with blue light. Fluorescence emission was detected by simple photographic examination of an orange filter. Image analysis allows the identification and counting of fluorescent particles. The enlarged image can be recorded and tiled to cover the entire filter area, thus detecting particles of a few microns. The discoloration properties of Nile red also provide the possibility of plastic classification based on the surface polar characteristics of the recognized particles. Anthocyanin dye can be used to quantify the amount of dsDNA in the sample. The linearity of fluorescence was obtained by measuring the fluorescence intensity at the optimal excitation and emission maxima as a function of the DNA amount of the six dyes.

Targetmol provides dye reagents, which are widely used in fluorescent labeling and biochemical detection, and is committed to providing high-quality reagent products and services for life science research.

Cat. No.	Product name	CAS No.	Purity
T81711	N-Acetyl-DL-phenylalanine β-naphthyl ester	20874-31-1	98%
T81711	N-Acetyl-DL-phenylalanine β-naphthyl ester serves as a chromogenic substrate specifically for chymotrypsin and microbial serine proteases like subtilisin [1]. Th...
T81718	N-[4-(2-Benzimidazolyl)phenyl]maleimide	27030-97-3	98%
T81718	N-[4-(2-Benzimidazolyl)phenyl]maleimide serves as a potent fluorescent probe featuring an excitation maximum at 315 nm and emission maximum at 360 nm, suitable f...
T81724	N-(2-Hydroxyethyl)-2-phenylacetamide	6269-99-4	98%
T81724	N-(2-Hydroxyethyl)-2-phenylacetamide is a fluorescent dye [1].
T81815	Methacrolein-2,4-dinitrophenylhydrazone	5077-73-6	98%
T81815	Methacrolein-2,4-dinitrophenylhydrazone is a small-molecule azo and nitro dye [1].
T81820	Meso-Benzothiazole-BODIPY 505/515		98%
T81820	Meso-Benzothiazole-BODIPY 505/515, a boron dipyrromethene (BODIPY)-based fluorescent probe, is utilized in autophagy research, particularly for studying Alzheime...
T81823	Mem-C1C18		98%
T81823	Mem-C1C18, a polarity-sensitive fluorescent probe, exhibits superior plasma membrane anchoring and high brightness, alongside a sensitive alteration in fluoresce...
T81836	Mca-SEVNLDAEFK(Dnp)-NH2	1802078-32-5	98%
T81836	Mca-SEVNLDAEFK(Dnp)-NH2 is a fluorogenic substrate featuring a 7-methoxycoumarin moiety whose fluorescence is quenched by the adjacent 2,4-dinitrophenyl group th...
T81839	MCA succinimidyl ester	359436-89-8	98%
T81839	MCA succinimidyl ester, a derivative of MCA, selectively reacts with amines and serves as a peptide substrate for fluorescence resonance energy transfer (FRET) [...
T81882	Mag-Indo-1 tetrapotassium salt	132299-21-9	98%
T81882	Mag-Indo-1 tetrapotassium salt is a cell-impermeable fluorescent probe designed for detecting Mg2+ [1].
T81904	Lucifer yellow iodoacetamide dipotassium	176182-05-1	98%
T81904	Lucifer Yellow Iodoacetamide Dipotassium is a thiol-reactive (sulfhydryl-reactive) fluorescent tracer utilized for labeling proteins.
T81913	LSD	945245-76-1	98%
T81913	LSD-phthalocyanine is a conjugated compound utilized in photoimmunology research [1].
T81914	L-Pyroglutamic acid β-naphthylamide	22155-91-5	98%
T81914	L-Pyroglutamic acid β-naphthylamide (PYR) is a derivative of glutamic acid.
T81945	LE 28	1416080-97-1	98%
T81945	LE 28 is a selective, activity-dependent probe for legumain that fluoresces exclusively upon binding to the active enzyme. It is applicable in research on cancer...
T82012	Janelia Fluor® 635, SE		98%
T82012	Janelia Fluor® 635, SE (JF635, SE) is a red fluorogenic dye featuring an NHS ester for conjugation with primary amine groups, suitable for live cell imaging [1]....
T82013	Janelia Fluor® 549, Tetrazine		98%
T82013	Janelia Fluor® 549, Tetrazine (JF549, Tetrazine) is a fluorescent dye characterized by an absorption maximum (λab (max)) at 549 nm and an emission maximum (λem (...
T82014	Janelia Fluor® 549, Maleimide TFA		98%
T82014	Janelia Fluor® 549, Maleimide TFA (JF549, Maleimide TFA) is a fluorescent dye featuring an absorption maximum (λab (max)) at 549 nm and an emission maximum (λem ...
T82015	Janelia Fluor® 549, Azide		98%
T82015	Janelia Fluor® 549, Azide (JF549, Azide) is a fluorescent dye characterized by an absorption maximum (λab (max)) of 549 nm and an emission maximum (λem (max)) of...
T82016	Janelia Fluor® 526, SE		98%
T82016	Janelia Fluor 526, SE (JF526, SE) is a fluorogenic yellow fluorescent dye featuring an NHS ester group. It serves as a versatile scaffold for creating fluorogeni...
T82052	IR-990		98%
T82052	IR-990, an activatable NIR-II fluorescent probe featuring an acceptor-π-acceptor (A-π-A) structure, enables real-time in vivo detection of hydrogen peroxide (H2O...
T82147	Hydroxy naphthol blue disodium	165660-27-5	98%
T82147	Hydroxy naphthol blue disodium, an azo dye functioning as a metal indicator for calcium and a colorimetric reagent for alkaline earth metal ions (λmax = 650 nm),...