
Crocein Orange G is a phenylsulfonephthalein dye extensively used in histology, microscopy, textile dyeing, and laboratory staining applications. It is an acidic dye, and is known for its bright orange dyeing ability, water solubility and strong affinity. It is frequently employed as a biological stain, for analytical chemistry, and for the dyeing of protein and tissue samples.
The dye can also be used in research laboratories for microscopy and histopathological studies due to its ability to give a good contrast in stained biological material.Â

CAS No. : 1934-20-9
Synonyms: Acid Orange 12; Orange G; C.I. 15970; Crocein Orange G
| Physical and Chemical Properties | |
| Chemical formula | C16H11N2NaO4S |
| IUPAC Name | sodium6-hydroxy-5-phenyldiazenylnaphthalene-2-sulfonate |
| Molecular weight | 350.3 g/mol |
| Solubility | Easily soluble in water and DMSO |
| State | Solid at 20 °C |
| Color | Dark Orange |
| Melting Point | >280° C (lit.) |
| Storage | Room Temperature (Recommended in a cool and dark place, <15°C) |
Histology & Microscopy Applications
Laboratory & Research Applications
Textile & Industrial Applications
| Pictograms : | N/A |
| Hazard Statements : | N/AÂ |
| Precautionary statements : | N/A |
Crocein Orange G is a phenylsulfonephthalein dye extensively used in histology, microscopy, textile dyeing, and laboratory staining applications. It is an acidic dye, and is known for its bright orange dyeing ability, water solubility and strong affinity. It is frequently employed as a biological stain, for analytical chemistry, and for the dyeing of protein and tissue samples.
The dye can also be used in research laboratories for microscopy and histopathological studies due to its ability to give a good contrast in stained biological material.Â

CAS No. : 1934-20-9
Synonyms: Acid Orange 12; Orange G; C.I. 15970; Crocein Orange G
| Physical and Chemical Properties | |
| Chemical formula | C16H11N2NaO4S |
| IUPAC Name | sodium6-hydroxy-5-phenyldiazenylnaphthalene-2-sulfonate |
| Molecular weight | 350.3 g/mol |
| Solubility | Easily soluble in water and DMSO |
| State | Solid at 20 °C |
| Color | Dark Orange |
| Melting Point | >280° C (lit.) |
| Storage | Room Temperature (Recommended in a cool and dark place, <15°C) |
Histology & Microscopy Applications
Laboratory & Research Applications
Textile & Industrial Applications
| Pictograms : | N/A |
| Hazard Statements : | N/AÂ |
| Precautionary statements : | N/A |
Crocein Orange G is a synthetic azo dye widely used in histology, laboratory staining, textile dyeing, and analytical applications. It also serves as a biological stain to help visualize tissues and cells in research laboratories.
Crocein Orange G is a synthetic acid azo dye widely used in laboratory and industrial applications.
Crocein Orange G is soluble in water. It is easily soluble in water and can be used to make staining solutions in the lab.
Crocein Orange G is an orange dye that produces a bright orange solution when dissolved in water. Depending on the manufacturing grade and form, the powder may appear dark orange or reddish-orange.