Fluorescent Dyes

Chemical dyes have been shown to be effective fluorescence tools in studying proteins, nucleic acids, lipid, carbohydrates, viruses, bacteria, cells, tissues, lymphokines, GPCRs, hormones and drugs.

• Cyanine dyes can impart prominent fluorescence for detection and characterization of the study subjects. The sulfo cyanine series offer the benefit of being water-soluble with enhanced photostability and improved quantum yields. We also offer cyanine probes having reactive groups for direct bio-conjugations.
• Fluorescein and Rhodamine dyes are widely used classic fluorescence tools. Fluorescein sodium salt, for example, has exhibited clinical indications in retinal demarcation. We also offer products having reactive groups for direct bio-conjugations.
• Azo and Triphenylmethane dyes exhibit a plethora of applications ranging from pH indication, metal ions complexation and textile pigmentation, and they also play active roles in biological and histological staining studies.

Classic Azo and Triphenylmethane-type Dyes

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Structure	Details
	Product Name: Kojic Acid (5-Hydroxy-2-hydroxymethyl-4-pyrone) Order number: RT-WH-001 CAS: 501-30-4 Purity: >=95% Appearance: solid MF: C6H6O4 MW: 142.11 MP: n.a. oC Description: Kojic acid exists in fungi and has found applications in fruit perservation and medical research. It emits greenish yellow fluorescence under ultraviolet light. Login to check availability and price information.
	Product Name: Acid red 18 (ponceau 4R) Order number: WJ0912 CAS: 2611-82-7 Purity: >=99.0% Appearance: solid MF: C20H11N2Na3O10S3 MW: 604.461 MP: oC Description: This reference-standard-quality product has found applications in food industry. Login to check availability and price information.
	Product Name: 3-Hydroxy-4-nitroso-2,7-naphthalenedisulfonic acid disodium salt Order number: 50P101228 CAS: 525-05-3 Purity: >=95% Appearance: solid MF: C10H7NNa2O8S2 MW: 379.265 MP: >300 oC Description: This product is used to chelate and detect metals such as cobalt ion. Login to check availability and price information.
	Product Name: Ethyl Orange sodium salt Order number: 50P101369 CAS: 62758-12-7 Purity: >=95% Appearance: solid MF: C16H18N3NaO3S MW: 355.388 MP: n.a. oC Description: Dyes with sulfonic acids tend to bind tightly to proteins and carbohydrates. They are generally "washable". Login to check availability and price information.
	Product Name: Thymol Blue (thymolsulfonephthalein) Order number: 50P142126 CAS: 76-61-9 Purity: >=95% Appearance: solid MF: C27H30O5S MW: 466.592 MP: n.a. oC Description: This dye is a brownish-green or reddish-brown crystalline powder and is used as a pH indicator. It is used for the sensor of CO2 in the presence of Eu (III) judged by glow intensity. Login to check availability and price information.
	Product Name: 4-Dimethylaminoazobenzene-4'-carboxylic acid Order number: 50P122186 CAS: 6268-49-1 Purity: 97% Appearance: solid MF: C15H15N3O2 MW: 269.304 MP: n.a. oC Description: It is a dark fluorescence quencher. It is a popular acceptor for developing FRET-based nucleic acid probes such as Molecular Beacon-based PCR probes. Login to check availability and price information.

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