lac

Lac dye is a possible food coloring agent which is completely nontoxic at low doses; lac dye is water soluble constituent of stick lac (commercial lac resin); lac resin is hardened secretion of insect Laccifer lacca (lac insect).

Malachite green (Solid Green Crystals O) is an N-methylated diaminotriphenylmethane dye used for coloring.

Malachite green oxalate is a triphenylmethane dye which can be used to detect the release of phosphate in enzymatic reactions.

Direct Black 38 (Chlorazol Black E) is a black azo dye that absorbs various colors of light and is commonly used in the textile industry.Direct Black 38 is genotoxic and induces unplanned DNA synthesis in rat liver and bone marrow micronuclei.

Ferristatin II (Direct Black 38 free acid) is a polysulphonated dye and promotes the degradation of transferrin receptor-1 in vitro and in vivo.

Brilliant Black BN (E 151) is an azo dye and a food colorant. It is a promising antiviral agent against EV71 infection via inhibiting the interaction between EV71 and its cellular uncoating factor cyclophilin A.

Fluorescein di(β-D-galactopyranoside) is a fluorogenic substrate for β-galactosidase (λem=535 nm, λex=485 nm).

C.I. Acid Black 24 is a dye that is a blue-black powder. Soluble in water, aqueous solution is reddish blue to black, greenish blue when added to concentrated hydrochloric acid; date red when added to concentrated sodium hydroxide solution. Dissolved in ethanol is navy blue, in concentrated sulfuric acid is gray-blue to black, after dilution is dark green light blue; in concentrated nitric acid is red light brown and then changed to yellow. Used for dyeing woolen fabrics, also suitable for nylon, silk and leather dyeing.

C.I. Direct Black 17 is a compound of dye.

Galactose-PEG-Cy3 is a Cy3-labeled Galactose-PEG conjugate. The Cy3 fluorophore is frequently used in applications such as immunolabeling, nucleic acid labeling, fluorescence microscopy, and flow cytometry. Cy3's maximum emission wavelength ranges from approximately 562-570 nm. Galactose-PEG enhances cellular uptake of drugs and reduces endosomal degradation, making it valuable for drug delivery.

C.I. Vat Black 27 is a black dye.

Leucomalachite green (NSC-36379) is used in detecting latent bloodstains and in the forensic field because of convenience and cost time-effectiveness.

Mca-PLAC(p-OMeBz)-WAR(Dpa)-NH2 is a fluorogenic substrate for matrix metalloproteinase-14 (MMP-14). Upon cleavage by MMP-14, 7-methoxycoumarin-4-acetyl (Mca) is released and its fluorescence can be used to quantify MMP activity. Mca displays excitation emission maxima of 328 420 nm, respectively.

4-Methylumbelliferyl β-D-Galactopyranoside-6-sulfate (sodium salt) (4-MU-Gal-6S) is a fluorogenic substrate used to quantify N-acetylgalactosamine-6-sulphatase (GALNS) activity. 4-MU-Gal-6S is cleaved by GALNS to release the fluorescent moiety 4-MU. 4-MU fluorescence is pH-dependent with excitation maxima of 320 and 360 nm at low (1.97-6.72) and high (7.12-10.3) pH, respectively, and an emission maximum ranging from 445 to 455 nM, increasing as pH decreases. It has been used to detect Morquio disease type A, a lysosomal storage disorder in which GALNS is deficient. 4-MU-Gal-6S can be used to assess GALNS activity in a very small blood volume to determine the extent of deficiency.

4-Methylumbelliferyl-β-D-galactoside (MUG) is a fluorogenic substrate for β-galactosidase (β-gal).1Hydrolysis of MUG by β-gal releases the fluorescent moiety 4-MU, which displays a pH-dependent excitation maximum of 330, 370, and 385 nm at pH 4.6, 7.4, and 10.4, respectively, and an emission maximum between 445-454 nm.2MUG has been used to detect β-gal activity in intact bacteria, yeast, and mammalian cells.1 1.Vidal-Aroca, F., Giannattasio, M., Brunelli, E., et al.One-step high-throughput assay for quantitative detection of β-galactosidase activity in intact Gram-negative bacteria, yeast, and mammalian cellsBiotechniques40(4)433-434(2006) 2.Zhi, H., Wang, J., Wang, S., et al.Fluorescent properties of hymecromone and fluorimetric analysis of hymecromone in compound dantong capsuleJ. Spectrosc.1(1)147128(2013)

Pafolacianine (OTL 38) is a near-infrared dye-based fluorescent marker used to identify ovarian cancer lesions during surgeries.

Amido Black 10B (Naphthol Blue Black) is a highly toxic azo dye used for staining proteins on polyacrylamide gels and agarose gels.

9-Methylacridine is an environmentally sensitive fluorescent probe that can couple with carboxylic acid molecules. Under ultraviolet light above 360 nm, it decomposes and releases the coupled carboxylic acid, exhibiting excellent cellular permeability and imaging capabilities.

N-(2-Hydroxyethyl)-2-phenylacetamide is a fluorescent dye [1].

C12 NBD Galactosylceramide, a fluorescent dye-labeled variant of galactosylceramide, possesses a C12 nitrobenzoxadiazole (C12 NBD) moiety that enables fluorescence. This compound serves as a tool in imaging research [1].

10-Dodecylacridine Orange Bromide serves as a versatile dye utilized across various domains. This multifunctional dye is crucial in biological experiments, assisting researchers in observing and analyzing cell structures, tracking biomolecules, evaluating cell functions, differentiating cell types, detecting biomolecules, studying tissue pathology, and monitoring microorganisms. Its applications extend from fundamental scientific research to a broad array of clinical diagnostics. Additionally, dyes like this are not only prevalent in conventional areas such as textile dyeing but also in burgeoning sectors including functional textile processing, food pigments, and dye-sensitized solar cells.

10-Octadecylacridine orange (bromide) serves as a versatile dye, instrumental in both scientific and industrial applications. Within the realm of biological experiments, this dye facilitates the observation and analysis of cell structures, enables tracking of biomolecules, assists in cell function evaluation, aids in distinguishing cell types, detects biomolecules, supports tissue pathology studies, and monitors microorganisms. Its use extends beyond basic research into a broad spectrum of clinical diagnostics. Additionally, the dye is prevalent in traditional sectors like textile dyeing and in innovative areas including functional textile processing, food pigments, and dye-sensitized solar cells.

6,7-Dimethoxy-4-coumarinylacetic acid (2-(6,7-Dimethoxy-2-oxo-2H-chromen-4-yl)acetic acid) serves as a multifunctional dye with diverse applications in both scientific and traditional domains. This compound facilitates the observation and analysis of cell structures in biological experiments, enabling researchers to track biomolecules, assess cell functions, categorize cell types, identify biomolecules, investigate tissue pathology, and monitor microorganisms. Beyond its scientific utility, 6,7-Dimethoxy-4-coumarinylacetic acid is also employed in industries including textile dyeing, functional textile processing, food pigments, and dye-sensitized solar cells. Its broad utility spans from fundamental research to clinical diagnostics, highlighting its importance across multiple fields.

C.I. Acid Black 132 is an acidic black dye that can be adsorbed and removed by Bentone.