Naphthol Green B is a synthetic iron coordination complex dye belonging to the nitroso dye family. It is the sodium salt of Naphthol Green Y and consists of an iron(III) ion chelated with three sulfonated nitroso-naphthol ligands. This gives the dye its characteristic deep green color, highly soluble in water and has excellent chemical stability.
The dye has a maximum absorption wavelength (λmax) of about 714 nm in aqueous solution, which helps in stable optical applications and reliable performance. Its stable chemical structure and reproducible spectral characteristics build a reliable reagent for laboratory and analytical research.
CAS No.: 19381-50-1
Synonyms: Acid Green 1Â
| Physical Properties | |
| Chemical formula | C30H15FeN3Na3O15S3 |
| IUPAC Name | trisodium; iron(3+); 5-nitroso-6-oxidonaphthalene-2-sulfonate |
| Molecular weight | 878.45Â g/mol |
| Solubility | Soluble in water |
| Density | 1.423 g/cm3 |
| Storage | Store at Room Temperature |
| Chemical Properties | |
| Color | Dark Green |
| Physical State | Powder or crystals |
| Melting Point | 349.84 °C |
| λmax | 714 nm |
| Ph | 9.3 |
| Odor | Odorless |
| Pictograms : |  |
| Hazard Statements : | H302: Harmful if swallowed H315: Causes skin irritation H319: Causes serious eye irritation H335: May cause respiratory irritation |
| Precautionary statements : | P261: Avoid breathing dust/fume/gas/mist/vapours/spray. P264: Wash hands thoroughly after handling P270: Do not eat, drink or smoke when using this product. P271: Use only outdoors or in a well-ventilated area. P280: Wear protective gloves/protective clothing/eye protection/face protection. |
Naphthol Green B is a synthetic iron coordination complex dye belonging to the nitroso dye family. It is the sodium salt of Naphthol Green Y and consists of an iron(III) ion chelated with three sulfonated nitroso-naphthol ligands. This gives the dye its characteristic deep green color, highly soluble in water and has excellent chemical stability.
The dye has a maximum absorption wavelength (λmax) of about 714 nm in aqueous solution, which helps in stable optical applications and reliable performance. Its stable chemical structure and reproducible spectral characteristics build a reliable reagent for laboratory and analytical research.
CAS No.: 19381-50-1
Synonyms: Acid Green 1Â
| Physical Properties | |
| Chemical formula | C30H15FeN3Na3O15S3 |
| IUPAC Name | trisodium; iron(3+); 5-nitroso-6-oxidonaphthalene-2-sulfonate |
| Molecular weight | 878.45Â g/mol |
| Solubility | Soluble in water |
| Density | 1.423 g/cm3 |
| Storage | Store at Room Temperature |
| Chemical Properties | |
| Color | Dark Green |
| Physical State | Powder or crystals |
| Melting Point | 349.84 °C |
| λmax | 714 nm |
| Ph | 9.3 |
| Odor | Odorless |
| Pictograms : | |
| Hazard Statements : | H302: Harmful if swallowed H315: Causes skin irritation H319: Causes serious eye irritation H335: May cause respiratory irritation |
| Precautionary statements : | P261: Avoid breathing dust/fume/gas/mist/vapours/spray. P264: Wash hands thoroughly after handling P270: Do not eat, drink or smoke when using this product. P271: Use only outdoors or in a well-ventilated area. P280: Wear protective gloves/protective clothing/eye protection/face protection. |
Naphthol Green B is used in biological staining, spectrophotometric determination, biochemical research, and other analytical laboratory procedures.
Naphthol Green B is readily soluble in water and is useful for aqueous staining solutions and analytical applications.
Naphthol Green B is a dark green to blackish green powder in the solid state. It is an iron coordination complex and gives a deep green solution in water. It is used in analytical, spectrophotometric, and staining applications.Â
Naphthol Green B is an iron coordination complex composed of iron and sulfonated naphthol-derived ligands. It belongs to the class of water-soluble synthetic dyes.
Naphthol Green B is applied in research laboratories, academic institutions, pharmaceutical laboratories, biotechnology facilities and analytical testing laboratories.
