Pinacyanol bromide
Pinacyanol bromide (CAS: 2670-67-9), with the molecular formula C25H25BrN2 and a molecular weight of 433.38, is a cyanine dye. It exhibits absorption at λmax 607 nm and is primarily utilised in cell biology, hematology, and histology as a staining agent. This compound is supplied by Tech Serve Solutions for research and laboratory applications.
- IUPAC
- 1,1′-Diethyl-2,2′-carbocyanine bromide,2,2′-Trimethinequinocyanine bromide
- Synonyms
- 1,1′-Diethyl-2,2′-carbocyanine bromide2,2′-Trimethinequinocyanine bromide

Cell Staining
Pinacyanol bromide serves as a vital stain in cell biology, aiding in the visualisation and differentiation of cellular components under microscopy. Its spectral properties allow for specific cellular targets to be highlighted.
Histological Applications
In histology, this cyanine dye is employed for staining tissue samples, enhancing structural details for diagnostic and research purposes. It is particularly useful for visualisation in hematology.
Laboratory Reagent
As a versatile laboratory reagent, Pinacyanol bromide is used in various analytical and investigative procedures where its unique optical properties can be exploited.
| Molecular weight | 433.38 |
|---|---|
| Empirical formula | C25H25BrN2 |
| Melting point | 286 °C (dec.)(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Absorption | λmax 607 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 Pinacyanol bromide used for?
+
Pinacyanol bromide is primarily used as a stain in cell biology, hematology, and histology for visualising cellular components and tissue structures.
What is the CAS number and molecular formula for Pinacyanol bromide?
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The CAS number is 2670-67-9, and the molecular formula is C25H25BrN2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Pinacyanol bromide for research and laboratory applications. We do not represent it as USP, BP, EP, or other pharmacopoeia grades unless explicitly stated.
How should Pinacyanol bromide be handled safely?
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Pinacyanol bromide is classified with Warning signal word and hazard statements H315, H319, H335, indicating it may cause skin irritation, serious eye irritation, and respiratory irritation. Handle with appropriate personal protective equipment including a dust mask (N95), eyeshields, and gloves, in a well-ventilated area.
How is Pinacyanol bromide packed and shipped?
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Tech Serve Solutions exports chemicals globally, ensuring appropriate packaging and documentation for safe transit and compliance with international shipping regulations.
How can I request a sample or quote for Pinacyanol bromide?
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To request a sample or a quotation for Pinacyanol bromide, please contact our sales team through the website or by phone, providing your specific requirements.
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