Mercury dibromofluorescein disodium salt
Mercury dibromofluorescein disodium salt (CAS: 129-16-8) is a green crystalline compound with the empirical formula C20H8Br2HgNa2O6 and a molecular weight of 750.65 g/mol. This chemical serves as a fluorescent label and probe, finding utility in various biochemical and luminescence-based detection applications. Its distinct spectral properties make it valuable for specialised scientific research and diagnostic development.
- IUPAC
- 2′,7′-Dibromo-5′-(hydroxymercurio)fluorescein disodium salt,Merbromin,Mercurochrome
- Synonyms
- MerbrominMercurochrome2′,7′-Dibromo-5′-(hydroxymercurio)fluorescein disodium salt

Fluorescent Labeling
Utilised as a fluorescent label in biochemical assays and microscopy. Its emission characteristics enable visualisation and tracking of biological molecules or processes.
Luminescence Detection
Employed in systems requiring luminescence detection due to its fluorescent properties. This can include certain analytical techniques and diagnostic kits.
Research Reagent
Serves as a specialised reagent in research laboratories exploring fluorescent probes and staining methodologies. Its use is focused on specific experimental protocols.
| Molecular weight | 750.65 |
|---|---|
| Empirical formula | C20H8Br2HgNa2O6 |
| Grade | practical grade |
| Form | crystalline |
| Colour | green |
| Melting point | ≥300 °C |



Hazard statements
- H300Fatal if swallowed
- H310Fatal in contact with skin
- H330Fatal if inhaled
- H373May cause damage to organs through prolonged exposure
- H410Very toxic to aquatic life with long-lasting effects
Precautionary statements
- P260Do not breathe dust, fume, gas, mist, vapours or spray
- P264Wash thoroughly after handling
- P273Avoid release to the environment
- P280Wear protective gloves, clothing and eye/face protection
- P284Wear respiratory protection
- P301IF SWALLOWED
| Protective equipment | Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 2025 6.1 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T+,N |
| Risk statements (R) | 26/27/28-33-50/53 |
| Safety statements (S) | 13-28-36-45-60-61 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
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 Mercury dibromofluorescein disodium salt used for?
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Mercury dibromofluorescein disodium salt is used as a fluorescent label and probe in biochemical assays, microscopy, and luminescence detection systems.
What is the CAS number and formula for Mercury dibromofluorescein disodium salt?
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The CAS number is 129-16-8 and the empirical formula is C20H8Br2HgNa2O6.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Mercury dibromofluorescein disodium salt in practical grade. We do not represent this product as USP, BP, or EP grade.
How should Mercury dibromofluorescein disodium salt be handled safely?
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This compound is dangerous and toxic. Handle with extreme care using appropriate personal protective equipment, including eyeshields, face shields, gloves, and a suitable respirator. Avoid inhalation, ingestion, and contact with skin. Ensure adequate ventilation and prevent release into the environment.
Is this chemical shipped internationally?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including Mercury dibromofluorescein disodium salt, and handles all necessary export documentation.
How can I request a quote or sample?
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To request a quote or a sample of Mercury dibromofluorescein disodium salt, please contact our sales department through the details provided on our website.
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