Home » Speciality Dyes and Biological Stains » Basic Brown 1 (Bismarck Brown Y)
What is Basic Brown 1 (Bismarck Brown Y)?
Basic Brown 1 also called Bismarck Brown Y, is a metachromatic dye, and it leaves acid mucins with a yellow stain. It is also used as a fluorochrome and an allergen in addition to being a histology dye. It was one of the earliest azo dyes, being described in 1863 by German chemist Carl Alexander von Martius.
Macsen Laboratories is the leading manufacturer and supplier of Basic Brown 1 (Bismarck Brown Y) with ISO certification.
| PRODUCT SPECIFICATIONS | |
|---|---|
| Name of Product | Basic Brown 1/ Bismarck Brown Y |
| IUPAC Name | 4-[[3-[(2,4-diaminophenyl)diazenyl]phenyl]diazenyl]benzene-1,3-diamine;dihydrochloride |
| Synonyms | Bismark Brown Y; Bismarck Brown Y; Phenylene Brown; C.I. Basic Brown 1, dihydrochloride; Vesuvine G; Marron basique 1 |
| CAS No | 10114-58-6; 8005-77-4 |
| Molecular Formula | C18H18N8.2HCl |
| Molecular Weight | 419.3 g/mol |
| Color Index No | 21000 |
| Pubchem CID | 82360 |
CHEMICAL PROPERTIES
| SR. No | Criteria | Limit/Specification |
|---|---|---|
| 1 | Appearance (Form) | Solid Powder |
| 2 | Appearance (Color) | Dark purple to blackish-brown |
| 3 | Odor | Odorless |
| 4 | Melting Point | >220 °C (dec) |
| 5 | Solubility | Soluble in Water and Alcohol |
Uses
- The Bismarck Brown Y or Basic Brown 1 stain is used to stain mucins, cartilage, and goblet cells.
- Bismarck brown Y is one of the components of Papanicolaou stain.
- It is used for the coloring of wool, silk, leather, paper, bamboo, and wood.
- Additionally, it is employed in the production of color and solvent dye deposit.
- In the process of staining acid-fast bacteria, it is also possible to utilize it as a counterstain for Victoria blue R.
Resources
Biological Stains | Classification, Examples & Uses
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