Mordant Blue 9
Mordant Blue 9 (CAS 3624-68-8) is a disodium salt with the chemical formula ClC6H2(OH)(SO3Na)N=NC10H5(OH)SO3Na and a molecular weight of 502.81 g/mol. This compound, identified by Colour Index Number 14855, functions as a dye. It is primarily utilised in biological staining applications, particularly within cell biology, hematology, and histology, for the visualisation of cellular structures and tissues. Its distinct spectral properties include an absorption maximum at 516 nm.
- IUPAC
- 6-(5-Chloro-2-hydroxy-3-sulfophenylazo)-5-hydroxy-1-naphthalenesulfonic acid disodium salt,6-(5-Chloro-2-hydroxy-4-sulfonphenylazo)-5-hydroxy-1-naphthalene-sulfonic acid sodium salt

Biological Staining
Mordant Blue 9 is a key stain used in biological laboratories for the differential staining of cells and tissues. Its properties allow for clear visualisation in microscopy.
Histology
In histology, this dye aids in the examination of tissue structures. It is effective in differentiating various cellular components, making it valuable for diagnostic purposes.
Hematology
Within hematology, Mordant Blue 9 is employed for staining blood cells. This assists in the microscopic analysis and identification of different blood components.
Cell Biology
This stain is applied in cell biology research to highlight cellular morphology and internal structures. It contributes to understanding cell function and organisation.
| Molecular weight | 502.81 |
|---|---|
| Linear formula | ClC6H2(OH)(SO3Na)N=NC10H5(OH)SO3Na |
| Colour Index Number | 14855 |
|---|---|
| Absorption | λmax 516 nm |
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Mordant Blue 9 used for?
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Mordant Blue 9 is primarily used as a dye for biological staining in cell biology, hematology, and histology.
What is the CAS number and chemical formula for Mordant Blue 9?
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The CAS number for Mordant Blue 9 is 3624-68-8, and its chemical formula is ClC6H2(OH)(SO3Na)N=NC10H5(OH)SO3Na.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Mordant Blue 9 as a research or technical grade chemical. We do not represent it as USP, BP, EP, or any other pharmacopoeia grade.
What are the safety considerations for handling Mordant Blue 9?
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Mordant Blue 9 is classified with a WGK Germany rating of 3, indicating it is hazardous to water. Handle with appropriate personal protective equipment in a well-ventilated area.
How is Mordant Blue 9 shipped and exported?
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Tech Serve Solutions is an experienced global supplier and exporter of fine chemicals, including Mordant Blue 9, adhering to all relevant shipping and export regulations.
How can I request a sample or quote for Mordant Blue 9?
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To request a sample or a quote for Mordant Blue 9, please contact our sales department through the website or by telephone.
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