Phthalaldehyde (Standard) is the standard substance of Phthalaldehyde, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Phthalaldehyde is a biochemical assay reagent that modifies amino acids and measures the derivatives via HPLC, forming a fluorescent compound with the α-amino group .

Carminic acid (Standard) is a reference standard for research and analysis in studies involving Carminic acid. Carminic acid, the well-known red dyestuff from cochineal insects (Dactylopius spp.), is a potent feeding deterrent to ants. Carminic acid is an antioxidant to protect erythrocytes and DNA against radical-induced oxidation, it also has antitumor activity.

Erythrosine B (Standard) is a reference standard for research and analysis in studies involving Erythrosine B. Erythrosine B (Erythrosine I) , a tetraiodofluorescein, is served as a red coloring in some foods (cherries, fish), as a disclosure of dental plaque, and as a stain of some cell types. Its structural was similar to thyroxine.

New Fuchsin (Standard) is a reference standard for research and analysis in studies involving New Fuchsin. New Fuchsin is a biochemical reagent that can be used as a biomaterial for life science related research and as a sulfonylation reagent for organic synthesis and drug discovery.

Aminacrine hydrochloride monohydrate (Standard) is the standard substance of Aminacrine hydrochloride monohydrate, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Aminacrine hydrochloride monohydrate, a highly fluorescent anti-infective dye, is used as a topical antiseptic and mutagen due to its interaction with DNA. It is also used as an intracellular pH indicator.

Brilliant Black BN (Standard) is the standard substance of Brilliant Black BN, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. 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.

Disperse Orange 3 (Standard) is the standard substance of Disperse Orange 3, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Disperse Orange 3 is a monoazo dye characterized by a dye content of 90%, along with dispersants and surfactants. It features two aromatic rings, one with an amino group and the other with a nitro group, displaying a distinct absorption peak at 415 nm.

Orange I (Standard) is the standard substance of Orange I, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Orange I (α-Naphthol Orange) is an aromatic sulfonated p-azo dye that interferes with microbial degradation.

Disperse Blue 102 (Standard) is the standard substance of Disperse Blue 102, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Disperse Blue 102 is a yellow dye frequently utilized in fiber dyeing.

Indigo carmine (Standard) is the standard substance of Indigo carmine, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Indigo carmine (NSC-8646) is an indolesulfonic acid. It is used as a dye in renal function testing for the detection of nitrates and chlorates.

4',5'-Dibromofluorescein (Standard) is the standard substance of 4',5'-Dibromofluorescein, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. 4',5'-Dibromofluorescein (Eosinic acid) is a fluorescent dye that can be used as a ligand for protein characterization by spectroscopic analysis.

Fuchsine base monohydrochloride (Standard) is the standard substance of Fuchsine base monohydrochloride, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Fuchsine base monohydrochloride (Rosaniline Base monohydrochloride) is a magenta dye and uses for acid-fast staining with carbol-fuchsin.

Violet bnp (Standard) is the standard substance of Violet bnp, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Violet Bnp is an agent of dye.

Ponceau MX (Standard) is the standard substance of Ponceau MX, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Ponceau MX is a dye, which may be used in biochemistry study.

Clofazimine (Standard) is a reference standard for research and analysis in studies involving Clofazimine. Clofazimine (NSC-141046) is a phenazine dye with anti-mycobacterial and anti-inflammatory activities. Clofazimine has a slow bactericidal effect on Mycobacterium leprae and is active against various other Mycobacteria.

Ethyl 8'-apo-caroten-8'-oate (Standard) is a reference standard for research and analysis in studies involving Ethyl 8'-apo-caroten-8'-oate. Ethyl 8'-apo-caroten-8'-oate serves as a versatile dye used across various domains. In biological experiments, this compound assists in observing and analyzing cell structures, tracking biomolecules, evaluating cell functions, distinguishing cell types, detecting biomolecules, studying tissue pathology, and monitoring microorganisms. Its use extends beyond basic scientific research to include clinical diagnostics, textile dyeing, functional textile processing, food pigments, and dye-sensitized solar cells, showcasing its broad application in both traditional and emerging fields.

Bronze Red (Standard) is a reference standard for research and analysis in studies involving Bronze Red. Bronze Red, an amide class organic compound, is utilized for content determination, identification, and pharmacological experiments.

Acid Orange 6 (Standard) is the standard substance of Acid Orange 6, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Acid Orange 6 is a compound of orange dye.

Dabsyl chloride (Standard) is the standard substance of Dabsyl chloride, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Dabsyl chloride (DABS-Cl) is an amine derivatizing agent and able to give rise to stable products that can be easily monitored spectrophotometrically at 460 nm.

Tartrazine (Standard) is the standard substance of Tartrazine, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Tartrazine (Acid Yellow 23) is a food additive that belongs to a class of artificial dyes and contains an azo group; it has significant genotoxic effect , may be harmful to health and its prolonged use could trigger carcinogenesis.

Rose Bengal sodium (Standard) is the standard substance of Rose Bengal sodium, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Rose Bengal sodium is a potent inhibitor of VGlut and vesicular monoamine transporter (VMAT) (Ki of 19 and 64 nM for VGlut andVMAT, respectively）

Pigment Red 57 (Standard) is the standard substance of Pigment Red 57, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Pigment Red 57, also known as D & C Red No. 6, is a synthetic dye produced from petroleum or coal tar sources; this dye is FDA-approved for use in pharmaceuticals and cosmetics.

Sulforhodamine B sodium salt (Standard) is the standard substance of Sulforhodamine B sodium salt, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Sulforhodamine B sodium salt (Acid Red 52) is a fluorescent dye. It can be used from laser-induced fluorescence to the quantification of cellular proteins of cultured cells.

Pigment yellow 81 (Standard) is the standard substance of Pigment yellow 81, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Pigment Yellow 81, a disazomethine dye with solid-state fluorescence, is a biologically active chemical.