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Solvent Green 7

Bright fluorescent green dye commonly used in inks, markers, pH indicators and optical sensors.

Solvent Green 7 (commonly known as Pyranine or HPTS) is a high-purity fluorescent dye offering bright green/yellow fluorescence and water solubility.It is widely applied in fluorescent inks & markers, paper & packaging inks, optical pH sensors and laboratory stains. Supplied as a powder or aqueous solution.

TRADE NAME:

Pyranine,Luminol Yellow 211

Key Features

  • High purity Typical purity ≥95% (HPLC).
  • Fluorescent pH-responsive emission — useful for sensors and indicators.
  • Water soluble Good solubility in water; also used in aqueous inks.

Applications

  • Fluorescent inks and markers
  • Water-based inks and paper coloration
  • Optical pH sensors and biological staining
  • Laboratory reagents and research uses

Why buy from Us

  • ISO quality control & batch certificates
  • Fast technical support for formulation
  • Worldwide shipping & customs docs

Technical Specifications

  • ‍CAS NO: 6358-69-6
  • CI.NO: 59040
  • Chemical Family: Bei sereis
  • Molecular Formula: C16H7Na3O10S3
  • Molecular Weight: 524.39
  • Shade: yellow green.‍

Density(g/cm3)

0.40

Melting Point(°C)

200

Light Fastness

7

Heat resistance

300

Acetone

2.2

Butyl Acetate

-

Methylbenzene

3.92

Dichloromethane

14.9

Ethylalcohol

1.0

Package

20 or 25kg/compound bag, carton box, iron drum, fiber durm for powder dye and 1000kg/tank for liquid dye.

Handling & Safety

Avoid inhalation, ingestion and contact with eyes/skin. Use appropriate PPE (gloves, goggles, respirator if dust). Refer to the SDS before handling and for disposal instructions.

Is Solvent Green 7 suitable for textile dyeing?

It is primarily used in inks, markers and sensor applications. For textile dyeing, compatibility depends on fiber and process — contact our technical team for trials.

What solvents is Solvent Green 7 compatible with?

Highly water soluble; consult technical sheet for organic solvent compatibility and recommended formulations.

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